1912732931831 has 16 divisors (see below), whose sum is σ = 1946935858368. Its totient is φ = 1878623366400.

The previous prime is 1912732931819. The next prime is 1912732931903. The reversal of 1912732931831 is 1381392372191.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1912732931831 is a prime.

It is a super-2 number, since 2×1912732931831² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1912732931831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912732931801) 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, 314953811 + ... + 314959883.

It is an arithmetic number, because the mean of its divisors is an integer number (121683491148).

Almost surely, 2^{1912732931831} is an apocalyptic number.

1912732931831 is a deficient number, since it is larger than the sum of its proper divisors (34202926537).

1912732931831 is an equidigital number, since it uses as much as digits as its factorization.

1912732931831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842.

The product of its digits is 489888, while the sum is 50.

The spelling of 1912732931831 in words is "one trillion, nine hundred twelve billion, seven hundred thirty-two million, nine hundred thirty-one thousand, eight hundred thirty-one".