397033978893571 has 8 divisors (see below), whose sum is σ = 411510130444080. Its totient is φ = 382610182322592.

The previous prime is 397033978893569. The next prime is 397033978893631. The reversal of 397033978893571 is 175398879330793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 397033978893571 - 2¹ = 397033978893569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397033979893571) 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, 13088729440 + ... + 13088759773.

It is an arithmetic number, because the mean of its divisors is an integer number (51438766305510).

Almost surely, 2^{397033978893571} is an apocalyptic number.

397033978893571 is a deficient number, since it is larger than the sum of its proper divisors (14476151550509).

397033978893571 is a wasteful number, since it uses less digits than its factorization.

397033978893571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26177489765.

The product of its (nonzero) digits is 6481218240, while the sum is 82.

The spelling of 397033978893571 in words is "three hundred ninety-seven trillion, thirty-three billion, nine hundred seventy-eight million, eight hundred ninety-three thousand, five hundred seventy-one".