723392113920 has 576 divisors, whose sum is σ = 2786349404160. Its totient is φ = 156368830464.

The previous prime is 723392113909. The next prime is 723392113963. The reversal of 723392113920 is 29311293327.

It is a super-4 number, since 4×723392113920⁴ (a number of 49 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 55016787 + ... + 55029933.

It is an arithmetic number, because the mean of its divisors is an integer number (4837412160).

Almost surely, 2^723392113920 is an apocalyptic number.

723392113920 is a gapful number since it is divisible by the number (70) 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 723392113920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1393174702080).

723392113920 is an abundant number, since it is smaller than the sum of its proper divisors (2062957290240).

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

723392113920 is a wasteful number, since it uses less digits than its factorization.

723392113920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13290 (or 13276 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 42.

The spelling of 723392113920 in words is "seven hundred twenty-three billion, three hundred ninety-two million, one hundred thirteen thousand, nine hundred twenty".