15158470491 has 48 divisors (see below), whose sum is σ = 23560992000. Its totient is φ = 9727488288.

The previous prime is 15158470487. The next prime is 15158470577. The reversal of 15158470491 is 19407485151.

15158470491 is a `hidden beast` number, since 1 + 5 + 15 + 84 + 70 + 491 = 666.

It is not a de Polignac number, because 15158470491 - 2² = 15158470487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15158470421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2442210 + ... + 2448408.

It is an arithmetic number, because the mean of its divisors is an integer number (490854000).

Almost surely, 2^15158470491 is an apocalyptic number.

15158470491 is a deficient number, since it is larger than the sum of its proper divisors (8402521509).

15158470491 is an equidigital number, since it uses as much as digits as its factorization.

15158470491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590 (or 6578 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 15158470491 in words is "fifteen billion, one hundred fifty-eight million, four hundred seventy thousand, four hundred ninety-one".