1078885731652 has 12 divisors (see below), whose sum is σ = 1907514464380. Its totient is φ = 533881598976.

The previous prime is 1078885731643. The next prime is 1078885731667. The reversal of 1078885731652 is 2561375888701.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 363146043456 + 715739688196 = 602616^2 + 846014^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

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, 1390316277 + ... + 1390317052.

Almost surely, 2^{1078885731652} is an apocalyptic number.

It is an amenable number.

1078885731652 is a deficient number, since it is larger than the sum of its proper divisors (828628732728).

1078885731652 is a wasteful number, since it uses less digits than its factorization.

1078885731652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780633430 (or 2780633428 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 61.

The spelling of 1078885731652 in words is "one trillion, seventy-eight billion, eight hundred eighty-five million, seven hundred thirty-one thousand, six hundred fifty-two".