745881575628 has 576 divisors, whose sum is σ = 2237198745600. Its totient is φ = 192320593920.

The previous prime is 745881575587. The next prime is 745881575641. The reversal of 745881575628 is 826575188547.

It is a super-2 number, since 2×745881575628² (a number of 25 digits) contains 22 as substring.

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, 2213298276 + ... + 2213298612.

It is an arithmetic number, because the mean of its divisors is an integer number (3884025600).

Almost surely, 2^745881575628 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 745881575628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118599372800).

745881575628 is an abundant number, since it is smaller than the sum of its proper divisors (1491317169972).

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

745881575628 is a wasteful number, since it uses less digits than its factorization.

745881575628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 541 counting only the distinct ones).

The product of its digits is 150528000, while the sum is 66.

The spelling of 745881575628 in words is "seven hundred forty-five billion, eight hundred eighty-one million, five hundred seventy-five thousand, six hundred twenty-eight".