97621443609948 has 72 divisors (see below), whose sum is σ = 247848041226240. Its totient is φ = 32397871151520.

The previous prime is 97621443609901. The next prime is 97621443609959. The reversal of 97621443609948 is 84990634412679.

It is a happy number.

97621443609948 is a `hidden beast` number, since 9 + 7 + 6 + 2 + 1 + 4 + 4 + 3 + 609 + 9 + 4 + 8 = 666.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10562061 + ... + 17515707.

It is an arithmetic number, because the mean of its divisors is an integer number (3442333905920).

Almost surely, 2^{97621443609948} is an apocalyptic number.

It is an amenable number.

97621443609948 is an abundant number, since it is smaller than the sum of its proper divisors (150226597616292).

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

97621443609948 is a wasteful number, since it uses less digits than its factorization.

97621443609948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955367 (or 6955362 counting only the distinct ones).

The product of its (nonzero) digits is 564350976, while the sum is 72.

The spelling of 97621443609948 in words is "ninety-seven trillion, six hundred twenty-one billion, four hundred forty-three million, six hundred nine thousand, nine hundred forty-eight".