139978773900 has 108 divisors (see below), whose sum is σ = 501435097072. Its totient is φ = 31995146880.

The previous prime is 139978773899. The next prime is 139978773931. The reversal of 139978773900 is 9377879931.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11103127 + ... + 11115726.

Almost surely, 2^139978773900 is an apocalyptic number.

139978773900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139978773900 is an abundant number, since it is smaller than the sum of its proper divisors (361456323172).

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

139978773900 is a wasteful number, since it uses less digits than its factorization.

139978773900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22218880 (or 22218870 counting only the distinct ones).

The product of its (nonzero) digits is 18003384, while the sum is 63.

The spelling of 139978773900 in words is "one hundred thirty-nine billion, nine hundred seventy-eight million, seven hundred seventy-three thousand, nine hundred".