102139526394 has 16 divisors (see below), whose sum is σ = 226976725440. Its totient is φ = 34046508780.

The previous prime is 102139526351. The next prime is 102139526453. The reversal of 102139526394 is 493625931201.

102139526394 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 3 + 9 + 5 + 2 + 639 + 4 = 666.

102139526394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945736302 + ... + 945736409.

It is an arithmetic number, because the mean of its divisors is an integer number (14186045340).

Almost surely, 2^102139526394 is an apocalyptic number.

102139526394 is an abundant number, since it is smaller than the sum of its proper divisors (124837199046).

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

102139526394 is a wasteful number, since it uses less digits than its factorization.

102139526394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891472722 (or 1891472716 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 102139526394 in words is "one hundred two billion, one hundred thirty-nine million, five hundred twenty-six thousand, three hundred ninety-four".