391656036967 has 12 divisors (see below), whose sum is σ = 424132285080. Its totient is φ = 361501908768.

The previous prime is 391656036931. The next prime is 391656036971. The reversal of 391656036967 is 769630656193.

It is not a de Polignac number, because 391656036967 - 2¹¹ = 391656034919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391656036997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2422384 + ... + 2579002.

It is an arithmetic number, because the mean of its divisors is an integer number (35344357090).

Almost surely, 2^391656036967 is an apocalyptic number.

391656036967 is a deficient number, since it is larger than the sum of its proper divisors (32476248113).

391656036967 is a wasteful number, since it uses less digits than its factorization.

391656036967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171442 (or 171429 counting only the distinct ones).

The product of its (nonzero) digits is 33067440, while the sum is 61.

The spelling of 391656036967 in words is "three hundred ninety-one billion, six hundred fifty-six million, thirty-six thousand, nine hundred sixty-seven".