7740002745 has 24 divisors (see below), whose sum is σ = 13418061696. Its totient is φ = 4127368608.

The previous prime is 7740002737. The next prime is 7740002761. The reversal of 7740002745 is 5472000477.

It is a happy number.

It is not a de Polignac number, because 7740002745 - 2³ = 7740002737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524944 + ... + 539486.

It is an arithmetic number, because the mean of its divisors is an integer number (559085904).

Almost surely, 2^7740002745 is an apocalyptic number.

It is an amenable number.

7740002745 is a deficient number, since it is larger than the sum of its proper divisors (5678058951).

7740002745 is a wasteful number, since it uses less digits than its factorization.

7740002745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26381 (or 26378 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 7740002745 is about 87977.2853923102. The cubic root of 7740002745 is about 1978.0945128459.

The spelling of 7740002745 in words is "seven billion, seven hundred forty million, two thousand, seven hundred forty-five".