15380874493 has 4 divisors (see below), whose sum is σ = 15382630528. Its totient is φ = 15379118460.

The previous prime is 15380874469. The next prime is 15380874517. The reversal of 15380874493 is 39447808351.

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.

It is an interprime number because it is at equal distance from previous prime (15380874469) and next prime (15380874517).

It is a cyclic number.

It is not a de Polignac number, because 15380874493 - 2⁵ = 15380874461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15380874493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15380874793) 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, 864813 + ... + 882418.

It is an arithmetic number, because the mean of its divisors is an integer number (3845657632).

Almost surely, 2^15380874493 is an apocalyptic number.

It is an amenable number.

15380874493 is a deficient number, since it is larger than the sum of its proper divisors (1756035).

15380874493 is an equidigital number, since it uses as much as digits as its factorization.

15380874493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756034.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 15380874493 in words is "fifteen billion, three hundred eighty million, eight hundred seventy-four thousand, four hundred ninety-three".