97990819915297 has 8 divisors (see below), whose sum is σ = 98145189230112. Its totient is φ = 97836486900000.

The previous prime is 97990819915271. The next prime is 97990819915309. The reversal of 97990819915297 is 79251991809979.

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

It is a cyclic number.

It is not a de Polignac number, because 97990819915297 - 2⁷ = 97990819915169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97990819915217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3669079 + ... + 14472172.

It is an arithmetic number, because the mean of its divisors is an integer number (12268148653764).

Almost surely, 2^{97990819915297} is an apocalyptic number.

It is an amenable number.

97990819915297 is a deficient number, since it is larger than the sum of its proper divisors (154369314815).

97990819915297 is a wasteful number, since it uses less digits than its factorization.

97990819915297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18149759.

The product of its (nonzero) digits is 2083248720, while the sum is 85.

The spelling of 97990819915297 in words is "ninety-seven trillion, nine hundred ninety billion, eight hundred nineteen million, nine hundred fifteen thousand, two hundred ninety-seven".