81924412883 has 2 divisors, whose sum is σ = 81924412884. Its totient is φ = 81924412882.

The previous prime is 81924412723. The next prime is 81924412891. The reversal of 81924412883 is 38821442918.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81924412883 is a prime.

It is not a weakly prime, because it can be changed into another prime (81924414883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40962206441 + 40962206442.

It is an arithmetic number, because the mean of its divisors is an integer number (40962206442).

Almost surely, 2^81924412883 is an apocalyptic number.

81924412883 is a deficient number, since it is larger than the sum of its proper divisors (1).

81924412883 is an equidigital number, since it uses as much as digits as its factorization.

81924412883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 884736, while the sum is 50.

The spelling of 81924412883 in words is "eighty-one billion, nine hundred twenty-four million, four hundred twelve thousand, eight hundred eighty-three".