15775383852 has 48 divisors (see below), whose sum is σ = 43304980320. Its totient is φ = 4949139456.

The previous prime is 15775383847. The next prime is 15775383863. The reversal of 15775383852 is 25838357751.

15775383852 is a `hidden beast` number, since 1 + 5 + 77 + 538 + 38 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 4294293 + ... + 4297964.

It is an arithmetic number, because the mean of its divisors is an integer number (902187090).

Almost surely, 2^15775383852 is an apocalyptic number.

15775383852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15775383852 is an abundant number, since it is smaller than the sum of its proper divisors (27529596468).

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

15775383852 is a wasteful number, since it uses less digits than its factorization.

15775383852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8592287 (or 8592279 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 54.

The spelling of 15775383852 in words is "fifteen billion, seven hundred seventy-five million, three hundred eighty-three thousand, eight hundred fifty-two".