97952913831 has 4 divisors (see below), whose sum is σ = 130603885112. Its totient is φ = 65301942552.

The previous prime is 97952913791. The next prime is 97952913841. The reversal of 97952913831 is 13831925979.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 97952913831 - 2⁶ = 97952913767 is a prime.

It is a super-2 number, since 2×97952913831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97952913841) 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, 16325485636 + ... + 16325485641.

It is an arithmetic number, because the mean of its divisors is an integer number (32650971278).

Almost surely, 2^97952913831 is an apocalyptic number.

97952913831 is a deficient number, since it is larger than the sum of its proper divisors (32650971281).

97952913831 is a wasteful number, since it uses less digits than its factorization.

97952913831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32650971280.

The product of its digits is 3674160, while the sum is 57.

The spelling of 97952913831 in words is "ninety-seven billion, nine hundred fifty-two million, nine hundred thirteen thousand, eight hundred thirty-one".