23735073621 has 16 divisors (see below), whose sum is σ = 36499548800. Its totient is φ = 13438467648.

The previous prime is 23735073611. The next prime is 23735073623. The reversal of 23735073621 is 12637053732.

It is not a de Polignac number, because 23735073621 - 2⁵ = 23735073589 is a prime.

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 23735073621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23735073623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5182306 + ... + 5186883.

It is an arithmetic number, because the mean of its divisors is an integer number (2281221800).

Almost surely, 2^23735073621 is an apocalyptic number.

23735073621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23735073621 is a deficient number, since it is larger than the sum of its proper divisors (12764475179).

23735073621 is a wasteful number, since it uses less digits than its factorization.

23735073621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10369308.

The product of its (nonzero) digits is 158760, while the sum is 39.

The spelling of 23735073621 in words is "twenty-three billion, seven hundred thirty-five million, seventy-three thousand, six hundred twenty-one".