1881055757406 has 16 divisors (see below), whose sum is σ = 4299556017024. Its totient is φ = 537444502104.

The previous prime is 1881055757363. The next prime is 1881055757429. The reversal of 1881055757406 is 6047575501881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22393520880 + ... + 22393520963.

It is an arithmetic number, because the mean of its divisors is an integer number (268722251064).

Almost surely, 2^{1881055757406} is an apocalyptic number.

1881055757406 is an abundant number, since it is smaller than the sum of its proper divisors (2418500259618).

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

1881055757406 is a wasteful number, since it uses less digits than its factorization.

1881055757406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44787041855.

The product of its (nonzero) digits is 9408000, while the sum is 57.

The spelling of 1881055757406 in words is "one trillion, eight hundred eighty-one billion, fifty-five million, seven hundred fifty-seven thousand, four hundred six".