104388891372 has 96 divisors (see below), whose sum is σ = 275895668160. Its totient is φ = 34121018880.

The previous prime is 104388891371. The next prime is 104388891377. The reversal of 104388891372 is 273198883401.

It is a happy number.

104388891372 is a `hidden beast` number, since 10 + 438 + 88 + 91 + 37 + 2 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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 (104388891371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13693722 + ... + 13701342.

It is an arithmetic number, because the mean of its divisors is an integer number (2873913210).

Almost surely, 2^104388891372 is an apocalyptic number.

104388891372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104388891372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137947834080).

104388891372 is an abundant number, since it is smaller than the sum of its proper divisors (171506776788).

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

104388891372 is a wasteful number, since it uses less digits than its factorization.

104388891372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10080 (or 10072 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 104388891372 in words is "one hundred four billion, three hundred eighty-eight million, eight hundred ninety-one thousand, three hundred seventy-two".