1091776083426 has 64 divisors (see below), whose sum is σ = 2776110163200. Its totient is φ = 311559654528.

The previous prime is 1091776083389. The next prime is 1091776083467. The reversal of 1091776083426 is 6243806771901.

1091776083426 is a `hidden beast` number, since 1 + 0 + 9 + 1 + 7 + 7 + 608 + 3 + 4 + 26 = 666.

It is a super-2 number, since 2×1091776083426² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1428675 + ... + 2055398.

It is an arithmetic number, because the mean of its divisors is an integer number (43376721300).

Almost surely, 2^{1091776083426} is an apocalyptic number.

1091776083426 is an abundant number, since it is smaller than the sum of its proper divisors (1684334079774).

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

1091776083426 is a wasteful number, since it uses less digits than its factorization.

1091776083426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484920 (or 3484914 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 1091776083426 in words is "one trillion, ninety-one billion, seven hundred seventy-six million, eighty-three thousand, four hundred twenty-six".