21462900839 has 8 divisors (see below), whose sum is σ = 21513278592. Its totient is φ = 21412551160.

The previous prime is 21462900793. The next prime is 21462900853. The reversal of 21462900839 is 93800926412.

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 21462900839 - 2⁸ = 21462900583 is a prime.

It is a super-2 number, since 2×21462900839² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21462900839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21462960839) 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, 2599652 + ... + 2607894.

It is an arithmetic number, because the mean of its divisors is an integer number (2689159824).

Almost surely, 2^21462900839 is an apocalyptic number.

21462900839 is a deficient number, since it is larger than the sum of its proper divisors (50377753).

21462900839 is an equidigital number, since it uses as much as digits as its factorization.

21462900839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14037.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 21462900839 in words is "twenty-one billion, four hundred sixty-two million, nine hundred thousand, eight hundred thirty-nine".