139379632940 has 24 divisors (see below), whose sum is σ = 297658201680. Its totient is φ = 54806906048.

The previous prime is 139379632937. The next prime is 139379633011. The reversal of 139379632940 is 49236973931.

It is a happy number.

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, 59057987 + ... + 59060346.

It is an arithmetic number, because the mean of its divisors is an integer number (12402425070).

Almost surely, 2^139379632940 is an apocalyptic number.

139379632940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139379632940 is an abundant number, since it is smaller than the sum of its proper divisors (158278568740).

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

139379632940 is a wasteful number, since it uses less digits than its factorization.

139379632940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118118401 (or 118118399 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 56.

The spelling of 139379632940 in words is "one hundred thirty-nine billion, three hundred seventy-nine million, six hundred thirty-two thousand, nine hundred forty".