2745560763640 has 32 divisors (see below), whose sum is σ = 6181822741680. Its totient is φ = 1097457901312.

The previous prime is 2745560763629. The next prime is 2745560763641. The reversal of 2745560763640 is 463670655472.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745560763641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23892094 + ... + 24006733.

Almost surely, 2^{2745560763640} is an apocalyptic number.

2745560763640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2745560763640 is an abundant number, since it is smaller than the sum of its proper divisors (3436261978040).

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

2745560763640 is a wasteful number, since it uses less digits than its factorization.

2745560763640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47900271 (or 47900267 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 55.

The spelling of 2745560763640 in words is "two trillion, seven hundred forty-five billion, five hundred sixty million, seven hundred sixty-three thousand, six hundred forty".