49664923512320 has 80 divisors (see below), whose sum is σ = 126084085802928. Its totient is φ = 18697382952960.

The previous prime is 49664923512289. The next prime is 49664923512329. The reversal of 49664923512320 is 2321532946694.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49664923512329) 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, 570555326 + ... + 570642365.

Almost surely, 2^{49664923512320} is an apocalyptic number.

49664923512320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49664923512320 is an abundant number, since it is smaller than the sum of its proper divisors (76419162290608).

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

49664923512320 is a wasteful number, since it uses less digits than its factorization.

49664923512320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141197731 (or 1141197715 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 56.

The spelling of 49664923512320 in words is "forty-nine trillion, six hundred sixty-four billion, nine hundred twenty-three million, five hundred twelve thousand, three hundred twenty".