397954198395 has 80 divisors (see below), whose sum is σ = 770568698592. Its totient is φ = 195323166720.

The previous prime is 397954198363. The next prime is 397954198399. The reversal of 397954198395 is 593891459793.

397954198395 is a `hidden beast` number, since 3 + 9 + 79 + 541 + 9 + 8 + 3 + 9 + 5 = 666.

It is not a de Polignac number, because 397954198395 - 2⁵ = 397954198363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397954198399) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1628539 + ... + 1856891.

Almost surely, 2^397954198395 is an apocalyptic number.

397954198395 is a deficient number, since it is larger than the sum of its proper divisors (372614500197).

397954198395 is a wasteful number, since it uses less digits than its factorization.

397954198395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228714 (or 228705 counting only the distinct ones).

The product of its digits is 330674400, while the sum is 72.

The spelling of 397954198395 in words is "three hundred ninety-seven billion, nine hundred fifty-four million, one hundred ninety-eight thousand, three hundred ninety-five".