7936642256 has 10 divisors (see below), whose sum is σ = 15377244402. Its totient is φ = 3968321120.

The previous prime is 7936642243. The next prime is 7936642283. The reversal of 7936642256 is 6522466397.

It can be written as a sum of positive squares in only one way, i.e., 7918152256 + 18490000 = 88984^2 + 4300^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248020055 + ... + 248020086.

Almost surely, 2^7936642256 is an apocalyptic number.

It is an amenable number.

7936642256 is a deficient number, since it is larger than the sum of its proper divisors (7440602146).

7936642256 is a wasteful number, since it uses less digits than its factorization.

7936642256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496040149 (or 496040143 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 50.

The square root of 7936642256 is about 89087.8345005647. The cubic root of 7936642256 is about 1994.7061881410.

The spelling of 7936642256 in words is "seven billion, nine hundred thirty-six million, six hundred forty-two thousand, two hundred fifty-six".