1011278033808 has 40 divisors (see below), whose sum is σ = 2985678005568. Its totient is φ = 288936580992.

The previous prime is 1011278033789. The next prime is 1011278033813. The reversal of 1011278033808 is 8083308721101.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1011278033808.

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, 1504877691 + ... + 1504878362.

Almost surely, 2^{1011278033808} is an apocalyptic number.

It is an amenable number.

1011278033808 is an abundant number, since it is smaller than the sum of its proper divisors (1974399971760).

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

1011278033808 is a wasteful number, since it uses less digits than its factorization.

1011278033808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009756071 (or 3009756065 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 1011278033808 in words is "one trillion, eleven billion, two hundred seventy-eight million, thirty-three thousand, eight hundred eight".