23528697534 has 16 divisors (see below), whose sum is σ = 52285994640. Its totient is φ = 7842899160.

The previous prime is 23528697529. The next prime is 23528697541. The reversal of 23528697534 is 43579682532.

23528697534 is a `hidden beast` number, since 2 + 3 + 528 + 69 + 7 + 53 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 435716621 = 23528697534 / (2 + 3 + 5 + 2 + 8 + 6 + 9 + 7 + 5 + 3 + 4).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 217858257 + ... + 217858364.

It is an arithmetic number, because the mean of its divisors is an integer number (3267874665).

Almost surely, 2^23528697534 is an apocalyptic number.

23528697534 is an abundant number, since it is smaller than the sum of its proper divisors (28757297106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23528697534 is a wasteful number, since it uses less digits than its factorization.

23528697534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435716632 (or 435716626 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 23528697534 in words is "twenty-three billion, five hundred twenty-eight million, six hundred ninety-seven thousand, five hundred thirty-four".