139177361952 has 72 divisors (see below), whose sum is σ = 395902621296. Its totient is φ = 46378740096.

The previous prime is 139177361941. The next prime is 139177361957. The reversal of 139177361952 is 259163771931.

139177361952 is a `hidden beast` number, since 1 + 3 + 9 + 17 + 7 + 3 + 619 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (139177361957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 928803 + ... + 1068189.

It is an arithmetic number, because the mean of its divisors is an integer number (5498647518).

Almost surely, 2^139177361952 is an apocalyptic number.

139177361952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139177361952 is an abundant number, since it is smaller than the sum of its proper divisors (256725259344).

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

139177361952 is a wasteful number, since it uses less digits than its factorization.

139177361952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142870 (or 142859 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The spelling of 139177361952 in words is "one hundred thirty-nine billion, one hundred seventy-seven million, three hundred sixty-one thousand, nine hundred fifty-two".