2745634491 has 12 divisors (see below), whose sum is σ = 3971998368. Its totient is φ = 1827615984.

The previous prime is 2745634481. The next prime is 2745634511. The reversal of 2745634491 is 1944365472.

2745634491 is a `hidden beast` number, since 2 + 7 + 4 + 5 + 634 + 4 + 9 + 1 = 666.

It is not a de Polignac number, because 2745634491 - 2⁶ = 2745634427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2745634481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227715 + ... + 239468.

It is an arithmetic number, because the mean of its divisors is an integer number (330999864).

Almost surely, 2^2745634491 is an apocalyptic number.

2745634491 is a deficient number, since it is larger than the sum of its proper divisors (1226363877).

2745634491 is a wasteful number, since it uses less digits than its factorization.

2745634491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467842 (or 467839 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 2745634491 is about 52398.8023813522. The cubic root of 2745634491 is about 1400.2779194853.

The spelling of 2745634491 in words is "two billion, seven hundred forty-five million, six hundred thirty-four thousand, four hundred ninety-one".