39149928140 has 12 divisors (see below), whose sum is σ = 82214849136. Its totient is φ = 15659971248.

The previous prime is 39149928119. The next prime is 39149928143. The reversal of 39149928140 is 4182994193.

39149928140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39149928143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978748184 + ... + 978748223.

It is an arithmetic number, because the mean of its divisors is an integer number (6851237428).

Almost surely, 2^39149928140 is an apocalyptic number.

It is an amenable number.

39149928140 is an abundant number, since it is smaller than the sum of its proper divisors (43064920996).

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

39149928140 is a wasteful number, since it uses less digits than its factorization.

39149928140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957496416 (or 1957496414 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 39149928140 in words is "thirty-nine billion, one hundred forty-nine million, nine hundred twenty-eight thousand, one hundred forty".