97310631639 has 8 divisors (see below), whose sum is σ = 139728086512. Its totient is φ = 59883465600.

The previous prime is 97310631611. The next prime is 97310631653. The reversal of 97310631639 is 93613601379.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97310631639 - 2¹⁵ = 97310598871 is a prime.

It is a super-2 number, since 2×97310631639² (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 (97310631739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247572162 + ... + 1247572239.

It is an arithmetic number, because the mean of its divisors is an integer number (17466010814).

Almost surely, 2^97310631639 is an apocalyptic number.

97310631639 is a deficient number, since it is larger than the sum of its proper divisors (42417454873).

97310631639 is a wasteful number, since it uses less digits than its factorization.

97310631639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495144417.

The product of its (nonzero) digits is 551124, while the sum is 48.

The spelling of 97310631639 in words is "ninety-seven billion, three hundred ten million, six hundred thirty-one thousand, six hundred thirty-nine".