97144963820 has 12 divisors (see below), whose sum is σ = 204004424064. Its totient is φ = 38857985520.

The previous prime is 97144963807. The next prime is 97144963823. The reversal of 97144963820 is 2836944179.

It is not an unprimeable number, because it can be changed into a prime (97144963823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2428624076 + ... + 2428624115.

It is an arithmetic number, because the mean of its divisors is an integer number (17000368672).

Almost surely, 2^97144963820 is an apocalyptic number.

It is an amenable number.

97144963820 is an abundant number, since it is smaller than the sum of its proper divisors (106859460244).

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

97144963820 is a wasteful number, since it uses less digits than its factorization.

97144963820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857248200 (or 4857248198 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 97144963820 in words is "ninety-seven billion, one hundred forty-four million, nine hundred sixty-three thousand, eight hundred twenty".