111865677705387 has 24 divisors (see below), whose sum is σ = 163154800380000. Its totient is φ = 73852041523968.

The previous prime is 111865677705377. The next prime is 111865677705413. The reversal of 111865677705387 is 783507776568111.

111865677705387 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 6 + 567 + 7 + 7 + 0 + 53 + 8 + 7 = 666.

It is not a de Polignac number, because 111865677705387 - 2⁷ = 111865677705259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111865677705377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68972739 + ... + 70575987.

It is an arithmetic number, because the mean of its divisors is an integer number (6798116682500).

Almost surely, 2^{111865677705387} is an apocalyptic number.

111865677705387 is a deficient number, since it is larger than the sum of its proper divisors (51289122674613).

111865677705387 is a wasteful number, since it uses less digits than its factorization.

111865677705387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678627 (or 1678624 counting only the distinct ones).

The product of its (nonzero) digits is 414892800, while the sum is 72.

The spelling of 111865677705387 in words is "one hundred eleven trillion, eight hundred sixty-five billion, six hundred seventy-seven million, seven hundred five thousand, three hundred eighty-seven".