23735720339 has 2 divisors, whose sum is σ = 23735720340. Its totient is φ = 23735720338.

The previous prime is 23735720329. The next prime is 23735720357. The reversal of 23735720339 is 93302753732.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23735720339 - 2⁸ = 23735720083 is a prime.

It is a super-2 number, since 2×23735720339² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23735720339.

It is not a weakly prime, because it can be changed into another prime (23735720329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11867860169 + 11867860170.

It is an arithmetic number, because the mean of its divisors is an integer number (11867860170).

Almost surely, 2^23735720339 is an apocalyptic number.

23735720339 is a deficient number, since it is larger than the sum of its proper divisors (1).

23735720339 is an equidigital number, since it uses as much as digits as its factorization.

23735720339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 44.

The spelling of 23735720339 in words is "twenty-three billion, seven hundred thirty-five million, seven hundred twenty thousand, three hundred thirty-nine".