21574250316 has 48 divisors (see below), whose sum is σ = 59223437280. Its totient is φ = 6768391680.

The previous prime is 21574250311. The next prime is 21574250363. The reversal of 21574250316 is 61305247512.

21574250316 is a `hidden beast` number, since 2 + 1 + 574 + 2 + 50 + 31 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (21574250311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5873505 + ... + 5877176.

It is an arithmetic number, because the mean of its divisors is an integer number (1233821610).

Almost surely, 2^21574250316 is an apocalyptic number.

It is an amenable number.

21574250316 is an abundant number, since it is smaller than the sum of its proper divisors (37649186964).

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

21574250316 is a wasteful number, since it uses less digits than its factorization.

21574250316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11750711 (or 11750703 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 21574250316 its reverse (61305247512), we get a palindrome (82879497828).

The spelling of 21574250316 in words is "twenty-one billion, five hundred seventy-four million, two hundred fifty thousand, three hundred sixteen".