23509037464640 has 672 divisors, whose sum is σ = 72399649236480. Its totient is φ = 7105967751168.

The previous prime is 23509037464639. The next prime is 23509037464651. The reversal of 23509037464640 is 4646473090532.

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 95 ways as a sum of consecutive naturals, for example, 7218001892 + ... + 7218005148.

Almost surely, 2^{23509037464640} is an apocalyptic number.

23509037464640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23509037464640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36199824618240).

23509037464640 is an abundant number, since it is smaller than the sum of its proper divisors (48890611771840).

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

23509037464640 is a wasteful number, since it uses less digits than its factorization.

23509037464640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159 (or 4136 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 53.

The spelling of 23509037464640 in words is "twenty-three trillion, five hundred nine billion, thirty-seven million, four hundred sixty-four thousand, six hundred forty".