69913393920 has 432 divisors, whose sum is σ = 255645385632. Its totient is φ = 18287493120.

The previous prime is 69913393861. The next prime is 69913393931. The reversal of 69913393920 is 2939331996.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16483000 + ... + 16487240.

It is an arithmetic number, because the mean of its divisors is an integer number (591771726).

Almost surely, 2^69913393920 is an apocalyptic number.

69913393920 is a gapful number since it is divisible by the number (60) 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 69913393920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127822692816).

69913393920 is an abundant number, since it is smaller than the sum of its proper divisors (185731991712).

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

69913393920 is an equidigital number, since it uses as much as digits as its factorization.

69913393920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330 (or 4304 counting only the distinct ones).

The product of its (nonzero) digits is 2125764, while the sum is 54.

The spelling of 69913393920 in words is "sixty-nine billion, nine hundred thirteen million, three hundred ninety-three thousand, nine hundred twenty".