97961027812 has 6 divisors (see below), whose sum is σ = 171431798678. Its totient is φ = 48980513904.

The previous prime is 97961027807. The next prime is 97961027821. The reversal of 97961027812 is 21872016979.

It can be written as a sum of positive squares in only one way, i.e., 95225319396 + 2735708416 = 308586^2 + 52304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97961027812.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12245128473 + ... + 12245128480.

Almost surely, 2^97961027812 is an apocalyptic number.

It is an amenable number.

97961027812 is a deficient number, since it is larger than the sum of its proper divisors (73470770866).

97961027812 is a wasteful number, since it uses less digits than its factorization.

97961027812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24490256957 (or 24490256955 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 97961027812 in words is "ninety-seven billion, nine hundred sixty-one million, twenty-seven thousand, eight hundred twelve".