139431206380 has 24 divisors (see below), whose sum is σ = 292813018848. Its totient is φ = 55771056768.

The previous prime is 139431206363. The next prime is 139431206419. The reversal of 139431206380 is 83602134931.

It is a happy number.

It is a super-2 number, since 2×139431206380² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1099417 + ... + 1219663.

It is an arithmetic number, because the mean of its divisors is an integer number (12200542452).

Almost surely, 2^139431206380 is an apocalyptic number.

139431206380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139431206380 is an abundant number, since it is smaller than the sum of its proper divisors (153381812468).

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

139431206380 is a wasteful number, since it uses less digits than its factorization.

139431206380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178233 (or 178231 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 139431206380 in words is "one hundred thirty-nine billion, four hundred thirty-one million, two hundred six thousand, three hundred eighty".