23069640729 has 16 divisors (see below), whose sum is σ = 31768657920. Its totient is φ = 14875720080.

The previous prime is 23069640697. The next prime is 23069640731. The reversal of 23069640729 is 92704696032.

It is not a de Polignac number, because 23069640729 - 2⁵ = 23069640697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23069640749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112312 + ... + 242390.

It is an arithmetic number, because the mean of its divisors is an integer number (1985541120).

Almost surely, 2^23069640729 is an apocalyptic number.

It is an amenable number.

23069640729 is a deficient number, since it is larger than the sum of its proper divisors (8699017191).

23069640729 is a wasteful number, since it uses less digits than its factorization.

23069640729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132020.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 23069640729 in words is "twenty-three billion, sixty-nine million, six hundred forty thousand, seven hundred twenty-nine".