1157407407523 has 4 divisors (see below), whose sum is σ = 1157410840320. Its totient is φ = 1157403974728.

The previous prime is 1157407407521. The next prime is 1157407407529. The reversal of 1157407407523 is 3257047047511.

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

It is a cyclic number.

It is not a de Polignac number, because 1157407407523 - 2¹ = 1157407407521 is a prime.

It is a super-2 number, since 2×1157407407523² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157407407521) 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, 1147888 + ... + 1905901.

It is an arithmetic number, because the mean of its divisors is an integer number (289352710080).

Almost surely, 2^{1157407407523} is an apocalyptic number.

1157407407523 is a deficient number, since it is larger than the sum of its proper divisors (3432797).

1157407407523 is an equidigital number, since it uses as much as digits as its factorization.

1157407407523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432796.

The product of its (nonzero) digits is 823200, while the sum is 46.

The spelling of 1157407407523 in words is "one trillion, one hundred fifty-seven billion, four hundred seven million, four hundred seven thousand, five hundred twenty-three".