1128639506792 has 64 divisors (see below), whose sum is σ = 2546819193600. Its totient is φ = 458427340800.

The previous prime is 1128639506783. The next prime is 1128639506843. The reversal of 1128639506792 is 2976059368211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3879209 + ... + 4159992.

It is an arithmetic number, because the mean of its divisors is an integer number (39794049900).

Almost surely, 2^{1128639506792} is an apocalyptic number.

It is an amenable number.

1128639506792 is an abundant number, since it is smaller than the sum of its proper divisors (1418179686808).

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

1128639506792 is a wasteful number, since it uses less digits than its factorization.

1128639506792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039346 (or 8039342 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 1128639506792 in words is "one trillion, one hundred twenty-eight billion, six hundred thirty-nine million, five hundred six thousand, seven hundred ninety-two".