308857418811 has 6 divisors (see below), whose sum is σ = 446127382740. Its totient is φ = 205904945868.

The previous prime is 308857418747. The next prime is 308857418813. The reversal of 308857418811 is 118814758803.

308857418811 is a `hidden beast` number, since 308 + 85 + 74 + 188 + 11 = 666.

It is not a de Polignac number, because 308857418811 - 2⁶ = 308857418747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (308857418813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17158745481 + ... + 17158745498.

It is an arithmetic number, because the mean of its divisors is an integer number (74354563790).

Almost surely, 2^308857418811 is an apocalyptic number.

308857418811 is a deficient number, since it is larger than the sum of its proper divisors (137269963929).

308857418811 is a wasteful number, since it uses less digits than its factorization.

308857418811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34317490985 (or 34317490982 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 54.

The spelling of 308857418811 in words is "three hundred eight billion, eight hundred fifty-seven million, four hundred eighteen thousand, eight hundred eleven".