23351730739 has 4 divisors (see below), whose sum is σ = 23352469920. Its totient is φ = 23350991560.

The previous prime is 23351730719. The next prime is 23351730749. The reversal of 23351730739 is 93703715332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23351730739 - 2¹¹ = 23351728691 is a prime.

It is a super-2 number, since 2×23351730739² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23351730695 and 23351730704.

It is not an unprimeable number, because it can be changed into a prime (23351730719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319984 + ... + 386125.

It is an arithmetic number, because the mean of its divisors is an integer number (5838117480).

Almost surely, 2^23351730739 is an apocalyptic number.

23351730739 is a deficient number, since it is larger than the sum of its proper divisors (739181).

23351730739 is an equidigital number, since it uses as much as digits as its factorization.

23351730739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739180.

The product of its (nonzero) digits is 357210, while the sum is 43.

The spelling of 23351730739 in words is "twenty-three billion, three hundred fifty-one million, seven hundred thirty thousand, seven hundred thirty-nine".