23701505247 has 24 divisors (see below), whose sum is σ = 41427842976. Its totient is φ = 12747027456.

The previous prime is 23701505189. The next prime is 23701505279. The reversal of 23701505247 is 74250510732.

It is not a de Polignac number, because 23701505247 - 2¹⁶ = 23701439711 is a prime.

It is a super-2 number, since 2×23701505247² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23701505147) 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 23 ways as a sum of consecutive naturals, for example, 11064058 + ... + 11066199.

It is an arithmetic number, because the mean of its divisors is an integer number (1726160124).

Almost surely, 2^23701505247 is an apocalyptic number.

23701505247 is a deficient number, since it is larger than the sum of its proper divisors (17726337729).

23701505247 is a wasteful number, since it uses less digits than its factorization.

23701505247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22130287 (or 22130284 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 23701505247 in words is "twenty-three billion, seven hundred one million, five hundred five thousand, two hundred forty-seven".