1078661873886 has 16 divisors (see below), whose sum is σ = 2173791869568. Its totient is φ = 356809271000.

The previous prime is 1078661873873. The next prime is 1078661873917. The reversal of 1078661873886 is 6883781668701.

It is a super-2 number, since 2×1078661873886² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1078661873886.

It is a congruent number.

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, 686170890 + ... + 686172461.

It is an arithmetic number, because the mean of its divisors is an integer number (135861991848).

Almost surely, 2^{1078661873886} is an apocalyptic number.

1078661873886 is an abundant number, since it is smaller than the sum of its proper divisors (1095129995682).

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

1078661873886 is a wasteful number, since it uses less digits than its factorization.

1078661873886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372343487.

The product of its (nonzero) digits is 130056192, while the sum is 69.

The spelling of 1078661873886 in words is "one trillion, seventy-eight billion, six hundred sixty-one million, eight hundred seventy-three thousand, eight hundred eighty-six".