15380563464 has 48 divisors (see below), whose sum is σ = 47606507520. Its totient is φ = 4394446560.

The previous prime is 15380563447. The next prime is 15380563469. The reversal of 15380563464 is 46436508351.

15380563464 is a `hidden beast` number, since 1 + 5 + 3 + 8 + 0 + 5 + 634 + 6 + 4 = 666.

It is a super-3 number, since 3×15380563464³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (15380563469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15257992 + ... + 15258999.

It is an arithmetic number, because the mean of its divisors is an integer number (991802240).

Almost surely, 2^15380563464 is an apocalyptic number.

15380563464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15380563464 is an abundant number, since it is smaller than the sum of its proper divisors (32225944056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15380563464 is a wasteful number, since it uses less digits than its factorization.

15380563464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30517010 (or 30517003 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 15380563464 in words is "fifteen billion, three hundred eighty million, five hundred sixty-three thousand, four hundred sixty-four".