1886991041 has 16 divisors (see below), whose sum is σ = 2188166400. Its totient is φ = 1611579648.

The previous prime is 1886991037. The next prime is 1886991103. The reversal of 1886991041 is 1401996881.

It is a cyclic number.

It is not a de Polignac number, because 1886991041 - 2² = 1886991037 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1886991241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59321 + ... + 85398.

It is an arithmetic number, because the mean of its divisors is an integer number (136760400).

Almost surely, 2^1886991041 is an apocalyptic number.

It is an amenable number.

1886991041 is a deficient number, since it is larger than the sum of its proper divisors (301175359).

1886991041 is a wasteful number, since it uses less digits than its factorization.

1886991041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144808.

The product of its (nonzero) digits is 124416, while the sum is 47.

The square root of 1886991041 is about 43439.5101376615. The cubic root of 1886991041 is about 1235.7291155948.

The spelling of 1886991041 in words is "one billion, eight hundred eighty-six million, nine hundred ninety-one thousand, forty-one".