72323541523464 has 768 divisors, whose sum is σ = 241191961804800. Its totient is φ = 17836396300800.

The previous prime is 72323541523451. The next prime is 72323541523537. The reversal of 72323541523464 is 46432514532327.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 47239412379 + ... + 47239413909.

It is an arithmetic number, because the mean of its divisors is an integer number (314052033600).

Almost surely, 2^{72323541523464} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72323541523464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120595980902400).

72323541523464 is an abundant number, since it is smaller than the sum of its proper divisors (168868420281336).

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

72323541523464 is a wasteful number, since it uses less digits than its factorization.

72323541523464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654 (or 2643 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 51.

The spelling of 72323541523464 in words is "seventy-two trillion, three hundred twenty-three billion, five hundred forty-one million, five hundred twenty-three thousand, four hundred sixty-four".