4645785664572 has 48 divisors (see below), whose sum is σ = 11871890378880. Its totient is φ = 1405244161728.

The previous prime is 4645785664501. The next prime is 4645785664573. The reversal of 4645785664572 is 2754665875464.

It is a happy number.

It is a super-2 number, since 2×4645785664572² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4645785664497 and 4645785664506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645785664573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252369418 + ... + 252387825.

It is an arithmetic number, because the mean of its divisors is an integer number (247331049560).

Almost surely, 2^{4645785664572} is an apocalyptic number.

It is an amenable number.

4645785664572 is an abundant number, since it is smaller than the sum of its proper divisors (7226104714308).

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

4645785664572 is a wasteful number, since it uses less digits than its factorization.

4645785664572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504757322 (or 504757320 counting only the distinct ones).

The product of its digits is 1354752000, while the sum is 69.

The spelling of 4645785664572 in words is "four trillion, six hundred forty-five billion, seven hundred eighty-five million, six hundred sixty-four thousand, five hundred seventy-two".