1882681491 has 64 divisors (see below), whose sum is σ = 2815819776. Its totient is φ = 1114819200.

The previous prime is 1882681453. The next prime is 1882681499. The reversal of 1882681491 is 1941862881.

It is not a de Polignac number, because 1882681491 - 2¹⁵ = 1882648723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1882681491.

It is not an unprimeable number, because it can be changed into a prime (1882681499) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6132360 + ... + 6132666.

It is an arithmetic number, because the mean of its divisors is an integer number (43997184).

Almost surely, 2^1882681491 is an apocalyptic number.

1882681491 is a deficient number, since it is larger than the sum of its proper divisors (933138285).

1882681491 is a wasteful number, since it uses less digits than its factorization.

1882681491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its digits is 221184, while the sum is 48.

The square root of 1882681491 is about 43389.8777481569. The cubic root of 1882681491 is about 1234.7876704473.

The spelling of 1882681491 in words is "one billion, eight hundred eighty-two million, six hundred eighty-one thousand, four hundred ninety-one".