23351490765 has 12 divisors (see below), whose sum is σ = 40475917404. Its totient is φ = 12454128384.

The previous prime is 23351490739. The next prime is 23351490769. The reversal of 23351490765 is 56709415332.

It can be written as a sum of positive squares in 2 ways, for example, as 7860950244 + 15490540521 = 88662^2 + 124461^2 .

It is not a de Polignac number, because 23351490765 - 2¹⁰ = 23351489741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 518922017 = 23351490765 / (2 + 3 + 3 + 5 + 1 + 4 + 9 + 0 + 7 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 23351490765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23351490769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259460964 + ... + 259461053.

It is an arithmetic number, because the mean of its divisors is an integer number (3372993117).

Almost surely, 2^23351490765 is an apocalyptic number.

It is an amenable number.

23351490765 is a deficient number, since it is larger than the sum of its proper divisors (17124426639).

23351490765 is a wasteful number, since it uses less digits than its factorization.

23351490765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518922028 (or 518922025 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 23351490765 in words is "twenty-three billion, three hundred fifty-one million, four hundred ninety thousand, seven hundred sixty-five".