97122731693 has 16 divisors (see below), whose sum is σ = 105952116480. Its totient is φ = 88488144576.

The previous prime is 97122731689. The next prime is 97122731701. The reversal of 97122731693 is 39613722179.

It is not a de Polignac number, because 97122731693 - 2² = 97122731689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97122731393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3546971 + ... + 3574247.

It is an arithmetic number, because the mean of its divisors is an integer number (6622007280).

Almost surely, 2^97122731693 is an apocalyptic number.

It is an amenable number.

97122731693 is a deficient number, since it is larger than the sum of its proper divisors (8829384787).

97122731693 is a wasteful number, since it uses less digits than its factorization.

97122731693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30836.

The product of its digits is 857304, while the sum is 50.

The spelling of 97122731693 in words is "ninety-seven billion, one hundred twenty-two million, seven hundred thirty-one thousand, six hundred ninety-three".