13012157499 has 8 divisors (see below), whose sum is σ = 18926774592. Its totient is φ = 7886156040.

The previous prime is 13012157497. The next prime is 13012157507. The reversal of 13012157499 is 99475121031.

13012157499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13012157499 - 2¹ = 13012157497 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13012157499.

It is not an unprimeable number, because it can be changed into a prime (13012157497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197153869 + ... + 197153934.

It is an arithmetic number, because the mean of its divisors is an integer number (2365846824).

Almost surely, 2^13012157499 is an apocalyptic number.

13012157499 is a deficient number, since it is larger than the sum of its proper divisors (5914617093).

13012157499 is a wasteful number, since it uses less digits than its factorization.

13012157499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394307817.

The product of its (nonzero) digits is 68040, while the sum is 42.

The spelling of 13012157499 in words is "thirteen billion, twelve million, one hundred fifty-seven thousand, four hundred ninety-nine".