396776683950971 has 32 divisors (see below), whose sum is σ = 417253900631040. Its totient is φ = 376812745940736.

The previous prime is 396776683950967. The next prime is 396776683950989. The reversal of 396776683950971 is 179059386677693.

It is a cyclic number.

It is not a de Polignac number, because 396776683950971 - 2² = 396776683950967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396776683950271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257740391 + ... + 259275263.

It is an arithmetic number, because the mean of its divisors is an integer number (13039184394720).

Almost surely, 2^{396776683950971} is an apocalyptic number.

396776683950971 is a deficient number, since it is larger than the sum of its proper divisors (20477216680069).

396776683950971 is a wasteful number, since it uses less digits than its factorization.

396776683950971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535603.

The product of its (nonzero) digits is 19443654720, while the sum is 86.

The spelling of 396776683950971 in words is "three hundred ninety-six trillion, seven hundred seventy-six billion, six hundred eighty-three million, nine hundred fifty thousand, nine hundred seventy-one".