21007367274 has 8 divisors (see below), whose sum is σ = 42014734560. Its totient is φ = 7002455756.

The previous prime is 21007367261. The next prime is 21007367281. The reversal of 21007367274 is 47276370012.

21007367274 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

21007367274 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750613934 + ... + 1750613945.

It is an arithmetic number, because the mean of its divisors is an integer number (5251841820).

Almost surely, 2^21007367274 is an apocalyptic number.

21007367274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21007367274 is a wasteful number, since it uses less digits than its factorization.

21007367274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501227884.

The product of its (nonzero) digits is 98784, while the sum is 39.

The spelling of 21007367274 in words is "twenty-one billion, seven million, three hundred sixty-seven thousand, two hundred seventy-four".