999783548831 has 2 divisors, whose sum is σ = 999783548832. Its totient is φ = 999783548830.

The previous prime is 999783548821. The next prime is 999783548837. The reversal of 999783548831 is 138845387999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999783548831 - 2⁶ = 999783548767 is a prime.

It is a super-2 number, since 2×999783548831² (a number of 25 digits) contains 22 as substring.

It is a pancake number, because a pancake can be divided into 999783548831 parts by 1414060 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999783548837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499891774415 + 499891774416.

It is an arithmetic number, because the mean of its divisors is an integer number (499891774416).

Almost surely, 2^999783548831 is an apocalyptic number.

999783548831 is a deficient number, since it is larger than the sum of its proper divisors (1).

999783548831 is an equidigital number, since it uses as much as digits as its factorization.

999783548831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470292480, while the sum is 74.

The spelling of 999783548831 in words is "nine hundred ninety-nine billion, seven hundred eighty-three million, five hundred forty-eight thousand, eight hundred thirty-one".