397194994467 has 40 divisors (see below), whose sum is σ = 612847769600. Its totient is φ = 256101257520.

The previous prime is 397194994457. The next prime is 397194994499. The reversal of 397194994467 is 764499491793.

397194994467 is a `hidden beast` number, since 3 + 9 + 7 + 1 + 94 + 99 + 446 + 7 = 666.

It is not a de Polignac number, because 397194994467 - 2⁸ = 397194994211 is a prime.

It is a super-2 number, since 2×397194994467² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 397194994395 and 397194994404.

It is not an unprimeable number, because it can be changed into a prime (397194994457) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4219638 + ... + 4312740.

It is an arithmetic number, because the mean of its divisors is an integer number (15321194240).

Almost surely, 2^397194994467 is an apocalyptic number.

397194994467 is a deficient number, since it is larger than the sum of its proper divisors (215652775133).

397194994467 is a wasteful number, since it uses less digits than its factorization.

397194994467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94845 (or 94836 counting only the distinct ones).

The product of its digits is 370355328, while the sum is 72.

The spelling of 397194994467 in words is "three hundred ninety-seven billion, one hundred ninety-four million, nine hundred ninety-four thousand, four hundred sixty-seven".