39946519480 has 64 divisors (see below), whose sum is σ = 103129044480. Its totient is φ = 13641360000.

The previous prime is 39946519477. The next prime is 39946519489. The reversal of 39946519480 is 8491564993.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39946519489) 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, 213916 + ... + 354475.

It is an arithmetic number, because the mean of its divisors is an integer number (1611391320).

Almost surely, 2^39946519480 is an apocalyptic number.

It is an amenable number.

39946519480 is an abundant number, since it is smaller than the sum of its proper divisors (63182525000).

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

39946519480 is a wasteful number, since it uses less digits than its factorization.

39946519480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568660 (or 568656 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 39946519480 in words is "thirty-nine billion, nine hundred forty-six million, five hundred nineteen thousand, four hundred eighty".