39991145260 has 48 divisors (see below), whose sum is σ = 91635747840. Its totient is φ = 14539112640.

The previous prime is 39991145221. The next prime is 39991145263. The reversal of 39991145260 is 6254119993.

39991145260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (39991145263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172731 + ... + 1206349.

It is an arithmetic number, because the mean of its divisors is an integer number (1909078080).

Almost surely, 2^39991145260 is an apocalyptic number.

It is an amenable number.

39991145260 is an abundant number, since it is smaller than the sum of its proper divisors (51644602580).

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

39991145260 is a wasteful number, since it uses less digits than its factorization.

39991145260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39046 (or 39044 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 49.

The spelling of 39991145260 in words is "thirty-nine billion, nine hundred ninety-one million, one hundred forty-five thousand, two hundred sixty".