39928852197 has 24 divisors (see below), whose sum is σ = 62600638464. Its totient is φ = 24378115104.

The previous prime is 39928852193. The next prime is 39928852259. The reversal of 39928852197 is 79125882993.

39928852197 is a `hidden beast` number, since 399 + 2 + 8 + 8 + 52 + 197 = 666.

It is not a de Polignac number, because 39928852197 - 2² = 39928852193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39928852193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1328733 + ... + 1358450.

It is an arithmetic number, because the mean of its divisors is an integer number (2608359936).

Almost surely, 2^39928852197 is an apocalyptic number.

It is an amenable number.

39928852197 is a deficient number, since it is larger than the sum of its proper divisors (22671786267).

39928852197 is a wasteful number, since it uses less digits than its factorization.

39928852197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687329 (or 2687326 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 39928852197 in words is "thirty-nine billion, nine hundred twenty-eight million, eight hundred fifty-two thousand, one hundred ninety-seven".