15265994493 has 32 divisors (see below), whose sum is σ = 21372567552. Its totient is φ = 9674121600.

The previous prime is 15265994483. The next prime is 15265994503. The reversal of 15265994493 is 39449956251.

It is an interprime number because it is at equal distance from previous prime (15265994483) and next prime (15265994503).

It is not a de Polignac number, because 15265994493 - 2⁴ = 15265994477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15265994413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9741396 + ... + 9742962.

It is an arithmetic number, because the mean of its divisors is an integer number (667892736).

Almost surely, 2^15265994493 is an apocalyptic number.

It is an amenable number.

15265994493 is a deficient number, since it is larger than the sum of its proper divisors (6106573059).

15265994493 is a wasteful number, since it uses less digits than its factorization.

15265994493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385.

The product of its digits is 10497600, while the sum is 57.

The spelling of 15265994493 in words is "fifteen billion, two hundred sixty-five million, nine hundred ninety-four thousand, four hundred ninety-three".