21674053170 has 128 divisors (see below), whose sum is σ = 72059258880. Its totient is φ = 4503695040.

The previous prime is 21674053153. The next prime is 21674053189. The reversal of 21674053170 is 7135047612.

It is a happy number.

21674053170 is a `hidden beast` number, since 2 + 16 + 7 + 40 + 531 + 70 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 500472 + ... + 542051.

It is an arithmetic number, because the mean of its divisors is an integer number (562962960).

Almost surely, 2^21674053170 is an apocalyptic number.

21674053170 is an abundant number, since it is smaller than the sum of its proper divisors (50385205710).

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

21674053170 is a wasteful number, since it uses less digits than its factorization.

21674053170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042557 (or 1042551 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 21674053170 in words is "twenty-one billion, six hundred seventy-four million, fifty-three thousand, one hundred seventy".