21412073613 has 32 divisors (see below), whose sum is σ = 32827576320. Its totient is φ = 12160733760.

The previous prime is 21412073603. The next prime is 21412073623. The reversal of 21412073613 is 31637021412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21412073603) and next prime (21412073623).

It is not a de Polignac number, because 21412073613 - 2⁹ = 21412073101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412073603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5206428 + ... + 5210538.

It is an arithmetic number, because the mean of its divisors is an integer number (1025861760).

Almost surely, 2^21412073613 is an apocalyptic number.

It is an amenable number.

21412073613 is a deficient number, since it is larger than the sum of its proper divisors (11415502707).

21412073613 is a wasteful number, since it uses less digits than its factorization.

21412073613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 21412073613 in words is "twenty-one billion, four hundred twelve million, seventy-three thousand, six hundred thirteen".