7744136745 has 32 divisors (see below), whose sum is σ = 12773347200. Its totient is φ = 4004550144.

The previous prime is 7744136737. The next prime is 7744136761. The reversal of 7744136745 is 5476314477.

It is not a de Polignac number, because 7744136745 - 2³ = 7744136737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7744136694 and 7744136703.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4671 + ... + 124539.

It is an arithmetic number, because the mean of its divisors is an integer number (399167100).

Almost surely, 2^7744136745 is an apocalyptic number.

It is an amenable number.

7744136745 is a deficient number, since it is larger than the sum of its proper divisors (5029210455).

7744136745 is a wasteful number, since it uses less digits than its factorization.

7744136745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120009.

The product of its digits is 1975680, while the sum is 48.

The square root of 7744136745 is about 88000.7769567974. The cubic root of 7744136745 is about 1978.4466224225.

The spelling of 7744136745 in words is "seven billion, seven hundred forty-four million, one hundred thirty-six thousand, seven hundred forty-five".