5197997915 has 16 divisors (see below), whose sum is σ = 6816017376. Its totient is φ = 3774048000.

The previous prime is 5197997899. The next prime is 5197997921.

5197997915 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5197997915 - 2⁴ = 5197997899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45572 + ... + 111681.

It is an arithmetic number, because the mean of its divisors is an integer number (426001086).

Almost surely, 2^5197997915 is an apocalyptic number.

5197997915 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5197997915 is a deficient number, since it is larger than the sum of its proper divisors (1618019461).

5197997915 is a wasteful number, since it uses less digits than its factorization.

5197997915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157870.

The product of its digits is 8037225, while the sum is 62.

The square root of 5197997915 is about 72097.1422110475. The cubic root of 5197997915 is about 1732.2558379968.

The spelling of 5197997915 in words is "five billion, one hundred ninety-seven million, nine hundred ninety-seven thousand, nine hundred fifteen".