139781172905330 has 96 divisors (see below), whose sum is σ = 281365305082560. Its totient is φ = 49584836364800.

The previous prime is 139781172905243. The next prime is 139781172905347. The reversal of 139781172905330 is 33509271187931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 139781172905330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2207608832 + ... + 2207672148.

It is an arithmetic number, because the mean of its divisors is an integer number (2930888594610).

Almost surely, 2^{139781172905330} is an apocalyptic number.

139781172905330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139781172905330 is an abundant number, since it is smaller than the sum of its proper divisors (141584132177230).

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

139781172905330 is a wasteful number, since it uses less digits than its factorization.

139781172905330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75356 (or 75315 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 59.

The spelling of 139781172905330 in words is "one hundred thirty-nine trillion, seven hundred eighty-one billion, one hundred seventy-two million, nine hundred five thousand, three hundred thirty".