104856134778 has 48 divisors (see below), whose sum is σ = 229680150336. Its totient is φ = 34569529920.

The previous prime is 104856134771. The next prime is 104856134783. The reversal of 104856134778 is 877431658401.

104856134778 is a `hidden beast` number, since 1 + 0 + 4 + 8 + 561 + 3 + 4 + 7 + 78 = 666.

It is a super-2 number, since 2×104856134778² (a number of 23 digits) contains 22 as substring.

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 not an unprimeable number, because it can be changed into a prime (104856134771) 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 23 ways as a sum of consecutive naturals, for example, 1468726 + ... + 1538462.

It is an arithmetic number, because the mean of its divisors is an integer number (4785003132).

Almost surely, 2^104856134778 is an apocalyptic number.

104856134778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

104856134778 is an abundant number, since it is smaller than the sum of its proper divisors (124824015558).

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

104856134778 is a wasteful number, since it uses less digits than its factorization.

104856134778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70659 (or 70656 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 104856134778 in words is "one hundred four billion, eight hundred fifty-six million, one hundred thirty-four thousand, seven hundred seventy-eight".