139749925480 has 64 divisors (see below), whose sum is σ = 343290052800. Its totient is φ = 50778524160.

The previous prime is 139749925421. The next prime is 139749925507. The reversal of 139749925480 is 84529947931.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443959 + ... + 690361.

It is an arithmetic number, because the mean of its divisors is an integer number (5363907075).

Almost surely, 2^139749925480 is an apocalyptic number.

139749925480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139749925480 is an abundant number, since it is smaller than the sum of its proper divisors (203540127320).

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

139749925480 is a wasteful number, since it uses less digits than its factorization.

139749925480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247714 (or 247710 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 139749925480 in words is "one hundred thirty-nine billion, seven hundred forty-nine million, nine hundred twenty-five thousand, four hundred eighty".