83492507381 has 2 divisors, whose sum is σ = 83492507382. Its totient is φ = 83492507380.

The previous prime is 83492507377. The next prime is 83492507387. The reversal of 83492507381 is 18370529438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71187042481 + 12305464900 = 266809^2 + 110930^2 .

It is a cyclic number.

It is not a de Polignac number, because 83492507381 - 2² = 83492507377 is a prime.

It is a super-2 number, since 2×83492507381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83492507387) 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 as a sum of consecutive naturals, namely, 41746253690 + 41746253691.

It is an arithmetic number, because the mean of its divisors is an integer number (41746253691).

Almost surely, 2^83492507381 is an apocalyptic number.

It is an amenable number.

83492507381 is a deficient number, since it is larger than the sum of its proper divisors (1).

83492507381 is an equidigital number, since it uses as much as digits as its factorization.

83492507381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 83492507381 in words is "eighty-three billion, four hundred ninety-two million, five hundred seven thousand, three hundred eighty-one".