4151421551 has 4 divisors (see below), whose sum is σ = 4219477704. Its totient is φ = 4083365400.

The previous prime is 4151421517. The next prime is 4151421557. The reversal of 4151421551 is 1551241514.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1551241514 = 2 ⋅775620757.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4151421551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4151421557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34027985 + ... + 34028106.

It is an arithmetic number, because the mean of its divisors is an integer number (1054869426).

Almost surely, 2^4151421551 is an apocalyptic number.

4151421551 is a deficient number, since it is larger than the sum of its proper divisors (68056153).

4151421551 is an equidigital number, since it uses as much as digits as its factorization.

4151421551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68056152.

The product of its digits is 4000, while the sum is 29.

The square root of 4151421551 is about 64431.5260644973. The cubic root of 4151421551 is about 1607.1840429631.

The spelling of 4151421551 in words is "four billion, one hundred fifty-one million, four hundred twenty-one thousand, five hundred fifty-one".