49818861 has 8 divisors (see below), whose sum is σ = 73805760. Its totient is φ = 33212556.

The previous prime is 49818793. The next prime is 49818877. The reversal of 49818861 is 16881894.

It is not a de Polignac number, because 49818861 - 2¹³ = 49810669 is a prime.

It is a super-2 number, since 2×49818861² = 4963837822674642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49810861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922545 + ... + 922598.

It is an arithmetic number, because the mean of its divisors is an integer number (9225720).

Almost surely, 2^49818861 is an apocalyptic number.

It is an amenable number.

49818861 is a deficient number, since it is larger than the sum of its proper divisors (23986899).

49818861 is a wasteful number, since it uses less digits than its factorization.

49818861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845152 (or 1845146 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 49818861 is about 7058.2477287213. The cubic root of 49818861 is about 367.9577303568.

The spelling of 49818861 in words is "forty-nine million, eight hundred eighteen thousand, eight hundred sixty-one".