1481689893 has 8 divisors (see below), whose sum is σ = 2091797568. Its totient is φ = 929687744.

The previous prime is 1481689873. The next prime is 1481689921. The reversal of 1481689893 is 3989861841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1481689893 - 2⁵ = 1481689861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481689873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14526321 + ... + 14526422.

It is an arithmetic number, because the mean of its divisors is an integer number (261474696).

Almost surely, 2^1481689893 is an apocalyptic number.

It is an amenable number.

1481689893 is a deficient number, since it is larger than the sum of its proper divisors (610107675).

1481689893 is a wasteful number, since it uses less digits than its factorization.

1481689893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29052763.

The product of its digits is 2985984, while the sum is 57.

The square root of 1481689893 is about 38492.7251958081. The cubic root of 1481689893 is about 1140.0374187472.

It can be divided in two parts, 148 and 1689893, that added together give a triangular number (1690041 = T₁₈₃₈).

The spelling of 1481689893 in words is "one billion, four hundred eighty-one million, six hundred eighty-nine thousand, eight hundred ninety-three".