104978447172 has 30 divisors (see below), whose sum is σ = 274434398238. Its totient is φ = 34992815616.

The previous prime is 104978447131. The next prime is 104978447177. The reversal of 104978447172 is 271744879401.

104978447172 is a `hidden beast` number, since 1 + 0 + 4 + 97 + 84 + 471 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53483037696 + 51495409476 = 231264^2 + 226926^2 .

It is a super-2 number, since 2×104978447172² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (104978447177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 162003453 + ... + 162004100.

Almost surely, 2^104978447172 is an apocalyptic number.

104978447172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

104978447172 is an abundant number, since it is smaller than the sum of its proper divisors (169455951066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104978447172 is a wasteful number, since it uses less digits than its factorization.

104978447172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324007569 (or 324007558 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 104978447172 in words is "one hundred four billion, nine hundred seventy-eight million, four hundred forty-seven thousand, one hundred seventy-two".