83437884997 has 2 divisors, whose sum is σ = 83437884998. Its totient is φ = 83437884996.

The previous prime is 83437884983. The next prime is 83437885007. The reversal of 83437884997 is 79948873438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63892167361 + 19545717636 = 252769^2 + 139806^2 .

It is a cyclic number.

It is not a de Polignac number, because 83437884997 - 2⁷ = 83437884869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83437884917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41718942498 + 41718942499.

It is an arithmetic number, because the mean of its divisors is an integer number (41718942499).

Almost surely, 2^83437884997 is an apocalyptic number.

It is an amenable number.

83437884997 is a deficient number, since it is larger than the sum of its proper divisors (1).

83437884997 is an equidigital number, since it uses as much as digits as its factorization.

83437884997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 292626432, while the sum is 70.

The spelling of 83437884997 in words is "eighty-three billion, four hundred thirty-seven million, eight hundred eighty-four thousand, nine hundred ninety-seven".