1128287738722 has 8 divisors (see below), whose sum is σ = 1707958503900. Its totient is φ = 558968237424.

The previous prime is 1128287738717. The next prime is 1128287738737. The reversal of 1128287738722 is 2278377828211.

It can be written as a sum of positive squares in 2 ways, for example, as 1114926921801 + 13360816921 = 1055901^2 + 115589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2587815697 + ... + 2587816132.

Almost surely, 2^{1128287738722} is an apocalyptic number.

1128287738722 is a deficient number, since it is larger than the sum of its proper divisors (579670765178).

1128287738722 is a wasteful number, since it uses less digits than its factorization.

1128287738722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175631940.

The product of its digits is 8429568, while the sum is 58.

The spelling of 1128287738722 in words is "one trillion, one hundred twenty-eight billion, two hundred eighty-seven million, seven hundred thirty-eight thousand, seven hundred twenty-two".