21174362316 has 18 divisors (see below), whose sum is σ = 53524082612. Its totient is φ = 7058120760.

The previous prime is 21174362249. The next prime is 21174362431. The reversal of 21174362316 is 61326347112.

21174362316 is a `hidden beast` number, since 2 + 1 + 17 + 4 + 3 + 623 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 588176731 = 21174362316 / (2 + 1 + 1 + 7 + 4 + 3 + 6 + 2 + 3 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 294088330 + ... + 294088401.

Almost surely, 2^21174362316 is an apocalyptic number.

It is an amenable number.

21174362316 is an abundant number, since it is smaller than the sum of its proper divisors (32349720296).

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

21174362316 is a wasteful number, since it uses less digits than its factorization.

21174362316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588176741 (or 588176736 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The spelling of 21174362316 in words is "twenty-one billion, one hundred seventy-four million, three hundred sixty-two thousand, three hundred sixteen".