745618285920 has 192 divisors, whose sum is σ = 2479407840000. Its totient is φ = 187826190336.

The previous prime is 745618285913. The next prime is 745618285921. The reversal of 745618285920 is 29582816547.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745618285921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3065751 + ... + 3300009.

It is an arithmetic number, because the mean of its divisors is an integer number (12913582500).

Almost surely, 2^745618285920 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 745618285920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239703920000).

745618285920 is an abundant number, since it is smaller than the sum of its proper divisors (1733789554080).

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

745618285920 is a wasteful number, since it uses less digits than its factorization.

745618285920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234645 (or 234637 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 745618285920 in words is "seven hundred forty-five billion, six hundred eighteen million, two hundred eighty-five thousand, nine hundred twenty".