7742047136 has 48 divisors (see below), whose sum is σ = 15745218048. Its totient is φ = 3743443200.

The previous prime is 7742047111. The next prime is 7742047151. The reversal of 7742047136 is 6317402477.

It is a junction number, because it is equal to n+sod(n) for n = 7742047093 and 7742047102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2402006 + ... + 2405226.

It is an arithmetic number, because the mean of its divisors is an integer number (328025376).

Almost surely, 2^7742047136 is an apocalyptic number.

It is an amenable number.

7742047136 is an abundant number, since it is smaller than the sum of its proper divisors (8003170912).

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

7742047136 is a wasteful number, since it uses less digits than its factorization.

7742047136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685 (or 5677 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 7742047136 is about 87988.9034822005. The cubic root of 7742047136 is about 1978.2686575999.

The spelling of 7742047136 in words is "seven billion, seven hundred forty-two million, forty-seven thousand, one hundred thirty-six".