501997697074388 has 12 divisors (see below), whose sum is σ = 879322400715360. Its totient is φ = 250762725441432.

The previous prime is 501997697074361. The next prime is 501997697074397. The reversal of 501997697074388 is 883470796799105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59030769158 + ... + 59030777661.

It is an arithmetic number, because the mean of its divisors is an integer number (73276866726280).

Almost surely, 2^{501997697074388} is an apocalyptic number.

It is an amenable number.

501997697074388 is a deficient number, since it is larger than the sum of its proper divisors (377324703640972).

501997697074388 is a wasteful number, since it uses less digits than its factorization.

501997697074388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118061547886 (or 118061547884 counting only the distinct ones).

The product of its (nonzero) digits is 5761082880, while the sum is 83.

The spelling of 501997697074388 in words is "five hundred one trillion, nine hundred ninety-seven billion, six hundred ninety-seven million, seventy-four thousand, three hundred eighty-eight".