97479850631 has 4 divisors (see below), whose sum is σ = 97522852392. Its totient is φ = 97436848872.

The previous prime is 97479850621. The next prime is 97479850673. The reversal of 97479850631 is 13605897479.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13605897479 = 2963 ⋅4591933.

It is a cyclic number.

It is not a de Polignac number, because 97479850631 - 2¹⁸ = 97479588487 is a prime.

It is a super-2 number, since 2×97479850631² (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 (97479850621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21497480 + ... + 21502013.

It is an arithmetic number, because the mean of its divisors is an integer number (24380713098).

Almost surely, 2^97479850631 is an apocalyptic number.

97479850631 is a deficient number, since it is larger than the sum of its proper divisors (43001761).

97479850631 is a wasteful number, since it uses less digits than its factorization.

97479850631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43001760.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 97479850631 in words is "ninety-seven billion, four hundred seventy-nine million, eight hundred fifty thousand, six hundred thirty-one".