97253187668 has 36 divisors (see below), whose sum is σ = 213208917012. Its totient is φ = 38473787520.

The previous prime is 97253187643. The next prime is 97253187671. The reversal of 97253187668 is 86678135279.

It can be written as a sum of positive squares in 2 ways, for example, as 52343948944 + 44909238724 = 228788^2 + 211918^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97253187668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19081673 + ... + 19086768.

It is an arithmetic number, because the mean of its divisors is an integer number (5922469917).

Almost surely, 2^97253187668 is an apocalyptic number.

97253187668 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

97253187668 is an abundant number, since it is smaller than the sum of its proper divisors (115955729344).

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

97253187668 is a wasteful number, since it uses less digits than its factorization.

97253187668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38168472 (or 38168463 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 62.

The spelling of 97253187668 in words is "ninety-seven billion, two hundred fifty-three million, one hundred eighty-seven thousand, six hundred sixty-eight".