21274799039 has 8 divisors (see below), whose sum is σ = 24259047120. Its totient is φ = 18483083136.

The previous prime is 21274799023. The next prime is 21274799057. The reversal of 21274799039 is 93099747212.

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

It is a cyclic number.

It is not a de Polignac number, because 21274799039 - 2⁴ = 21274799023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21274799089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48132809 + ... + 48133250.

It is an arithmetic number, because the mean of its divisors is an integer number (3032380890).

Almost surely, 2^21274799039 is an apocalyptic number.

21274799039 is a deficient number, since it is larger than the sum of its proper divisors (2984248081).

21274799039 is a wasteful number, since it uses less digits than its factorization.

21274799039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96266089.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The spelling of 21274799039 in words is "twenty-one billion, two hundred seventy-four million, seven hundred ninety-nine thousand, thirty-nine".