97915617119 has 4 divisors (see below), whose sum is σ = 97919094096. Its totient is φ = 97912140144.

The previous prime is 97915617109. The next prime is 97915617143. The reversal of 97915617119 is 91171651979.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97915617119 is a prime.

It is a super-2 number, since 2×97915617119² (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 (97915617109) 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, 1695899 + ... + 1752684.

It is an arithmetic number, because the mean of its divisors is an integer number (24479773524).

Almost surely, 2^97915617119 is an apocalyptic number.

97915617119 is a deficient number, since it is larger than the sum of its proper divisors (3476977).

97915617119 is a wasteful number, since it uses less digits than its factorization.

97915617119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476976.

The product of its digits is 1071630, while the sum is 56.

The spelling of 97915617119 in words is "ninety-seven billion, nine hundred fifteen million, six hundred seventeen thousand, one hundred nineteen".