397401807454 has 16 divisors (see below), whose sum is σ = 605552644800. Its totient is φ = 195566795424.

The previous prime is 397401807443. The next prime is 397401807497. The reversal of 397401807454 is 454708104793.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3917109 + ... + 4017280.

It is an arithmetic number, because the mean of its divisors is an integer number (37847040300).

Almost surely, 2^397401807454 is an apocalyptic number.

397401807454 is a deficient number, since it is larger than the sum of its proper divisors (208150837346).

397401807454 is a wasteful number, since it uses less digits than its factorization.

397401807454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934787.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 397401807454 in words is "three hundred ninety-seven billion, four hundred one million, eight hundred seven thousand, four hundred fifty-four".