397150043579 has 4 divisors (see below), whose sum is σ = 397151400984. Its totient is φ = 397148686176.

The previous prime is 397150043513. The next prime is 397150043611. The reversal of 397150043579 is 975340051793.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397150043579 is a prime.

It is a super-2 number, since 2×397150043579² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397150043579.

It is not an unprimeable number, because it can be changed into a prime (397150040579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38597 + ... + 892070.

It is an arithmetic number, because the mean of its divisors is an integer number (99287850246).

Almost surely, 2^397150043579 is an apocalyptic number.

397150043579 is a deficient number, since it is larger than the sum of its proper divisors (1357405).

397150043579 is an equidigital number, since it uses as much as digits as its factorization.

397150043579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357404.

The product of its (nonzero) digits is 3572100, while the sum is 53.

The spelling of 397150043579 in words is "three hundred ninety-seven billion, one hundred fifty million, forty-three thousand, five hundred seventy-nine".