97457421920 has 48 divisors (see below), whose sum is σ = 230261820768. Its totient is φ = 38979809280.

The previous prime is 97457421913. The next prime is 97457421967. The reversal of 97457421920 is 2912475479.

It is a happy number.

It is a congruent number.

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, 3866960 + ... + 3892080.

It is an arithmetic number, because the mean of its divisors is an integer number (4797121266).

Almost surely, 2^97457421920 is an apocalyptic number.

It is an amenable number.

97457421920 is an abundant number, since it is smaller than the sum of its proper divisors (132804398848).

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

97457421920 is a wasteful number, since it uses less digits than its factorization.

97457421920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49383 (or 49375 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 97457421920 in words is "ninety-seven billion, four hundred fifty-seven million, four hundred twenty-one thousand, nine hundred twenty".