3815115132457 has 4 divisors (see below), whose sum is σ = 3815820726016. Its totient is φ = 3814409538900.

The previous prime is 3815115132443. The next prime is 3815115132469. The reversal of 3815115132457 is 7542315115183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3815115132457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3815115132497) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 352788669 + ... + 352799482.

It is an arithmetic number, because the mean of its divisors is an integer number (953955181504).

Almost surely, 2^{3815115132457} is an apocalyptic number.

It is an amenable number.

3815115132457 is a deficient number, since it is larger than the sum of its proper divisors (705593559).

3815115132457 is an equidigital number, since it uses as much as digits as its factorization.

3815115132457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705593558.

The product of its digits is 504000, while the sum is 46.

The spelling of 3815115132457 in words is "three trillion, eight hundred fifteen billion, one hundred fifteen million, one hundred thirty-two thousand, four hundred fifty-seven".