1831777013 has 24 divisors (see below), whose sum is σ = 2177352576. Its totient is φ = 1533868160.

The previous prime is 1831776997. The next prime is 1831777033. The reversal of 1831777013 is 3107771381.

It is not a de Polignac number, because 1831777013 - 2⁴ = 1831776997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1831777033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87206 + ... + 106152.

It is an arithmetic number, because the mean of its divisors is an integer number (90723024).

Almost surely, 2^1831777013 is an apocalyptic number.

It is an amenable number.

1831777013 is a deficient number, since it is larger than the sum of its proper divisors (345575563).

1831777013 is a wasteful number, since it uses less digits than its factorization.

1831777013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19033 (or 19022 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 1831777013 is about 42799.2641642353. The cubic root of 1831777013 is about 1223.5569876126.

The spelling of 1831777013 in words is "one billion, eight hundred thirty-one million, seven hundred seventy-seven thousand, thirteen".