45772651808 has 72 divisors (see below), whose sum is σ = 101450192508. Its totient is φ = 20207227392.

The previous prime is 45772651753. The next prime is 45772651811. The reversal of 45772651808 is 80815627754.

It can be written as a sum of positive squares in 2 ways, for example, as 38436386704 + 7336265104 = 196052^2 + 85652^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45772651808.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116066 + ... + 324062.

Almost surely, 2^45772651808 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 45772651808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50725096254).

45772651808 is an abundant number, since it is smaller than the sum of its proper divisors (55677540700).

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

45772651808 is a wasteful number, since it uses less digits than its factorization.

45772651808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208066 (or 208035 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 45772651808 in words is "forty-five billion, seven hundred seventy-two million, six hundred fifty-one thousand, eight hundred eight".