15272007493 has 4 divisors (see below), whose sum is σ = 15764652928. Its totient is φ = 14779362060.

The previous prime is 15272007449. The next prime is 15272007497. The reversal of 15272007493 is 39470027251.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39470027251 = 83 ⋅475542497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15272007493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15272007497) 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, 246322671 + ... + 246322732.

It is an arithmetic number, because the mean of its divisors is an integer number (3941163232).

Almost surely, 2^15272007493 is an apocalyptic number.

It is an amenable number.

15272007493 is a deficient number, since it is larger than the sum of its proper divisors (492645435).

15272007493 is an equidigital number, since it uses as much as digits as its factorization.

15272007493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492645434.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 15272007493 in words is "fifteen billion, two hundred seventy-two million, seven thousand, four hundred ninety-three".