39787621948 has 24 divisors (see below), whose sum is σ = 70437124800. Its totient is φ = 19662897408.

The previous prime is 39787621931. The next prime is 39787621949. The reversal of 39787621948 is 84912678793.

39787621948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 39787621948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39787621949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997533 + ... + 1036651.

It is an arithmetic number, because the mean of its divisors is an integer number (2934880200).

Almost surely, 2^39787621948 is an apocalyptic number.

It is an amenable number.

39787621948 is a deficient number, since it is larger than the sum of its proper divisors (30649502852).

39787621948 is a wasteful number, since it uses less digits than its factorization.

39787621948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42069 (or 42067 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 64.

The spelling of 39787621948 in words is "thirty-nine billion, seven hundred eighty-seven million, six hundred twenty-one thousand, nine hundred forty-eight".