82749841729631 has 2 divisors, whose sum is σ = 82749841729632. Its totient is φ = 82749841729630.

The previous prime is 82749841729391. The next prime is 82749841729657. The reversal of 82749841729631 is 13692714894728.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82749841729631 is a prime.

It is a super-2 number, since 2×82749841729631² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82749841729661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41374920864815 + 41374920864816.

It is an arithmetic number, because the mean of its divisors is an integer number (41374920864816).

Almost surely, 2^{82749841729631} is an apocalyptic number.

82749841729631 is a deficient number, since it is larger than the sum of its proper divisors (1).

82749841729631 is an equidigital number, since it uses as much as digits as its factorization.

82749841729631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 292626432, while the sum is 71.

The spelling of 82749841729631 in words is "eighty-two trillion, seven hundred forty-nine billion, eight hundred forty-one million, seven hundred twenty-nine thousand, six hundred thirty-one".