39997866830496 has 48 divisors (see below), whose sum is σ = 105039136599264. Its totient is φ = 13326941493504.

The previous prime is 39997866830473. The next prime is 39997866830531. The reversal of 39997866830496 is 69403866879993.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 88535755 + ... + 88986378.

It is an arithmetic number, because the mean of its divisors is an integer number (2188315345818).

Almost surely, 2^{39997866830496} is an apocalyptic number.

It is an amenable number.

39997866830496 is an abundant number, since it is smaller than the sum of its proper divisors (65041269768768).

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

39997866830496 is a wasteful number, since it uses less digits than its factorization.

39997866830496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177524493 (or 177524485 counting only the distinct ones).

The product of its (nonzero) digits is 22856214528, while the sum is 87.

The spelling of 39997866830496 in words is "thirty-nine trillion, nine hundred ninety-seven billion, eight hundred sixty-six million, eight hundred thirty thousand, four hundred ninety-six".