97313951519 has 4 divisors (see below), whose sum is σ = 97316612544. Its totient is φ = 97311290496.

The previous prime is 97313951507. The next prime is 97313951551. The reversal of 97313951519 is 91515931379.

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

It is a cyclic number.

It is not a de Polignac number, because 97313951519 - 2⁴ = 97313951503 is a prime.

It is a super-2 number, since 2×97313951519² (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 (97313950519) 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, 1274882 + ... + 1349055.

It is an arithmetic number, because the mean of its divisors is an integer number (24329153136).

Almost surely, 2^97313951519 is an apocalyptic number.

97313951519 is a deficient number, since it is larger than the sum of its proper divisors (2661025).

97313951519 is a wasteful number, since it uses less digits than its factorization.

97313951519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661024.

The product of its digits is 1148175, while the sum is 53.

The spelling of 97313951519 in words is "ninety-seven billion, three hundred thirteen million, nine hundred fifty-one thousand, five hundred nineteen".