7915496945197 has 4 divisors (see below), whose sum is σ = 7924522598236. Its totient is φ = 7906471292160.

The previous prime is 7915496945179. The next prime is 7915496945233.

7915496945197 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4128946784361 + 3786550160836 = 2031981^2 + 1945906^2 .

It is a cyclic number.

It is not a de Polignac number, because 7915496945197 - 2³⁵ = 7881137206829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7915496945107) 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, 4512825204 + ... + 4512826957.

It is an arithmetic number, because the mean of its divisors is an integer number (1981130649559).

Almost surely, 2^{7915496945197} is an apocalyptic number.

It is an amenable number.

7915496945197 is a deficient number, since it is larger than the sum of its proper divisors (9025653039).

7915496945197 is an equidigital number, since it uses as much as digits as its factorization.

7915496945197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9025653038.

The product of its digits is 771573600, while the sum is 76.

The spelling of 7915496945197 in words is "seven trillion, nine hundred fifteen billion, four hundred ninety-six million, nine hundred forty-five thousand, one hundred ninety-seven".