45781394736 has 320 divisors, whose sum is σ = 154082995200. Its totient is φ = 11364864000.

The previous prime is 45781394717. The next prime is 45781394759. The reversal of 45781394736 is 63749318754.

It is a super-2 number, since 2×45781394736² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10823470 + ... + 10827698.

It is an arithmetic number, because the mean of its divisors is an integer number (481509360).

Almost surely, 2^45781394736 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 45781394736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77041497600).

45781394736 is an abundant number, since it is smaller than the sum of its proper divisors (108301600464).

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

45781394736 is a wasteful number, since it uses less digits than its factorization.

45781394736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388 (or 4382 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 57.

The spelling of 45781394736 in words is "forty-five billion, seven hundred eighty-one million, three hundred ninety-four thousand, seven hundred thirty-six".