15384484508945 has 16 divisors (see below), whose sum is σ = 18671013326160. Its totient is φ = 12167865600000.

The previous prime is 15384484508917. The next prime is 15384484508951. The reversal of 15384484508945 is 54980548448351.

It can be written as a sum of positive squares in 8 ways, for example, as 6819707662849 + 8564776846096 = 2611457^2 + 2926564^2 .

It is not a de Polignac number, because 15384484508945 - 2⁸ = 15384484508689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1749545 + ... + 5816345.

It is an arithmetic number, because the mean of its divisors is an integer number (1166938332885).

Almost surely, 2^{15384484508945} is an apocalyptic number.

It is an amenable number.

15384484508945 is a deficient number, since it is larger than the sum of its proper divisors (3286528817215).

15384484508945 is an equidigital number, since it uses as much as digits as its factorization.

15384484508945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075396.

The product of its (nonzero) digits is 442368000, while the sum is 68.

The spelling of 15384484508945 in words is "fifteen trillion, three hundred eighty-four billion, four hundred eighty-four million, five hundred eight thousand, nine hundred forty-five".