139028571738 has 48 divisors (see below), whose sum is σ = 344318282880. Its totient is φ = 39715865568.

The previous prime is 139028571727. The next prime is 139028571833. The reversal of 139028571738 is 837175820931.

It is a happy number.

139028571738 is a `hidden beast` number, since 1 + 39 + 0 + 2 + 8 + 571 + 7 + 38 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 698808 + ... + 875436.

It is an arithmetic number, because the mean of its divisors is an integer number (7173297560).

Almost surely, 2^139028571738 is an apocalyptic number.

139028571738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

139028571738 is an abundant number, since it is smaller than the sum of its proper divisors (205289711142).

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

139028571738 is a wasteful number, since it uses less digits than its factorization.

139028571738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182891 (or 182888 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 139028571738 in words is "one hundred thirty-nine billion, twenty-eight million, five hundred seventy-one thousand, seven hundred thirty-eight".