23256308540 has 24 divisors (see below), whose sum is σ = 48846924672. Its totient is φ = 9300870720.

The previous prime is 23256308519. The next prime is 23256308557. The reversal of 23256308540 is 4580365232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23256308494 and 23256308503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15422 + ... + 216218.

It is an arithmetic number, because the mean of its divisors is an integer number (2035288528).

Almost surely, 2^23256308540 is an apocalyptic number.

23256308540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23256308540 is an abundant number, since it is smaller than the sum of its proper divisors (25590616132).

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

23256308540 is a wasteful number, since it uses less digits than its factorization.

23256308540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206597 (or 206595 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 23256308540 in words is "twenty-three billion, two hundred fifty-six million, three hundred eight thousand, five hundred forty".