331697857377 has 8 divisors (see below), whose sum is σ = 442266483520. Its totient is φ = 221130568080.

The previous prime is 331697857331. The next prime is 331697857451. The reversal of 331697857377 is 773758796133.

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

It is not a de Polignac number, because 331697857377 - 2¹⁹ = 331697333089 is a prime.

It is a super-2 number, since 2×331697857377² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331697857327) 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, 717852 + ... + 1085682.

It is an arithmetic number, because the mean of its divisors is an integer number (55283310440).

Almost surely, 2^331697857377 is an apocalyptic number.

It is an amenable number.

331697857377 is a deficient number, since it is larger than the sum of its proper divisors (110568626143).

331697857377 is a wasteful number, since it uses less digits than its factorization.

331697857377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668423.

The product of its digits is 140026320, while the sum is 66.

The spelling of 331697857377 in words is "three hundred thirty-one billion, six hundred ninety-seven million, eight hundred fifty-seven thousand, three hundred seventy-seven".