397473868800 has 660 divisors, whose sum is σ = 1486886857456. Its totient is φ = 104907571200.

The previous prime is 397473868777. The next prime is 397473868823. The reversal of 397473868800 is 8868374793.

397473868800 is a `hidden beast` number, since 3 + 9 + 7 + 473 + 86 + 8 + 80 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (397473868777) and next prime (397473868823).

It is a super-2 number, since 2×397473868800² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 213579870 + ... + 213581730.

Almost surely, 2^397473868800 is an apocalyptic number.

397473868800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397473868800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743443428728).

397473868800 is an abundant number, since it is smaller than the sum of its proper divisors (1089412988656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397473868800 is a wasteful number, since it uses less digits than its factorization.

397473868800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 397473868800 in words is "three hundred ninety-seven billion, four hundred seventy-three million, eight hundred sixty-eight thousand, eight hundred".