1026783390816 has 72 divisors (see below), whose sum is σ = 2924976252744. Its totient is φ = 341667901440.

The previous prime is 1026783390799. The next prime is 1026783390823. The reversal of 1026783390816 is 6180933876201.

1026783390816 is a `hidden beast` number, since 102 + 6 + 78 + 3 + 390 + 81 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2923270 + ... + 3255621.

It is an arithmetic number, because the mean of its divisors is an integer number (40624670177).

Almost surely, 2^{1026783390816} is an apocalyptic number.

1026783390816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1026783390816 is an abundant number, since it is smaller than the sum of its proper divisors (1898192861928).

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

1026783390816 is a wasteful number, since it uses less digits than its factorization.

1026783390816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179484 (or 6179473 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 1026783390816 in words is "one trillion, twenty-six billion, seven hundred eighty-three million, three hundred ninety thousand, eight hundred sixteen".