39993551164 has 12 divisors (see below), whose sum is σ = 79987102384. Its totient is φ = 17140093344.

The previous prime is 39993551113. The next prime is 39993551167. The reversal of 39993551164 is 46115539993.

It is a happy number.

39993551164 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39993551167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714170529 + ... + 714170584.

Almost surely, 2^39993551164 is an apocalyptic number.

It is an amenable number.

39993551164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39993551164 is a wasteful number, since it uses less digits than its factorization.

39993551164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428341124 (or 1428341122 counting only the distinct ones).

The product of its digits is 3936600, while the sum is 55.

The spelling of 39993551164 in words is "thirty-nine billion, nine hundred ninety-three million, five hundred fifty-one thousand, one hundred sixty-four".