1808120776042 has 64 divisors (see below), whose sum is σ = 3153384898560. Its totient is φ = 761552095104.

The previous prime is 1808120776027. The next prime is 1808120776123. The reversal of 1808120776042 is 2406770218081.

It is a junction number, because it is equal to n+sod(n) for n = 1808120775983 and 1808120776001.

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, 610231653 + ... + 610234615.

It is an arithmetic number, because the mean of its divisors is an integer number (49271639040).

Almost surely, 2^{1808120776042} is an apocalyptic number.

1808120776042 is a deficient number, since it is larger than the sum of its proper divisors (1345264122518).

1808120776042 is a wasteful number, since it uses less digits than its factorization.

1808120776042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987.

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 1808120776042 in words is "one trillion, eight hundred eight billion, one hundred twenty million, seven hundred seventy-six thousand, forty-two".