102104578434 has 32 divisors (see below), whose sum is σ = 207116365824. Its totient is φ = 33550468560.

The previous prime is 102104578393. The next prime is 102104578447. The reversal of 102104578434 is 434875401201.

It is a junction number, because it is equal to n+sod(n) for n = 102104578392 and 102104578401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3762117 + ... + 3789159.

It is an arithmetic number, because the mean of its divisors is an integer number (6472386432).

Almost surely, 2^102104578434 is an apocalyptic number.

102104578434 is an abundant number, since it is smaller than the sum of its proper divisors (105011787390).

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

102104578434 is a wasteful number, since it uses less digits than its factorization.

102104578434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35982.

The product of its (nonzero) digits is 107520, while the sum is 39.

Adding to 102104578434 its reverse (434875401201), we get a palindrome (536979979635).

The spelling of 102104578434 in words is "one hundred two billion, one hundred four million, five hundred seventy-eight thousand, four hundred thirty-four".