397694165995 has 8 divisors (see below), whose sum is σ = 545409141984. Its totient is φ = 272704570944.

The previous prime is 397694165989. The next prime is 397694166061. The reversal of 397694165995 is 599561496793.

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

It is a cyclic number.

It is not a de Polignac number, because 397694165995 - 2¹³ = 397694157803 is a prime.

It is a super-2 number, since 2×397694165995² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5681345194 + ... + 5681345263.

It is an arithmetic number, because the mean of its divisors is an integer number (68176142748).

Almost surely, 2^397694165995 is an apocalyptic number.

397694165995 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

397694165995 is a deficient number, since it is larger than the sum of its proper divisors (147714975989).

397694165995 is a wasteful number, since it uses less digits than its factorization.

397694165995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362690469.

The product of its digits is 496011600, while the sum is 73.

The spelling of 397694165995 in words is "three hundred ninety-seven billion, six hundred ninety-four million, one hundred sixty-five thousand, nine hundred ninety-five".