2745502812 has 72 divisors (see below), whose sum is σ = 7867255760. Its totient is φ = 800305920.

The previous prime is 2745502789. The next prime is 2745502813. The reversal of 2745502812 is 2182055472.

It is a happy number.

2745502812 is a `hidden beast` number, since 2 + 74 + 5 + 502 + 81 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745502813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145489 + ... + 163272.

Almost surely, 2^2745502812 is an apocalyptic number.

It is an amenable number.

2745502812 is an abundant number, since it is smaller than the sum of its proper divisors (5121752948).

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

2745502812 is a wasteful number, since it uses less digits than its factorization.

2745502812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308803 (or 308798 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 2745502812 is about 52397.5458585610. The cubic root of 2745502812 is about 1400.2555336282.

The spelling of 2745502812 in words is "two billion, seven hundred forty-five million, five hundred two thousand, eight hundred twelve".