83419491437 has 2 divisors, whose sum is σ = 83419491438. Its totient is φ = 83419491436.

The previous prime is 83419491433. The next prime is 83419491497. The reversal of 83419491437 is 73419491438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79340242276 + 4079249161 = 281674^2 + 63869^2 .

It is a cyclic number.

It is not a de Polignac number, because 83419491437 - 2² = 83419491433 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83419491433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41709745718 + 41709745719.

It is an arithmetic number, because the mean of its divisors is an integer number (41709745719).

Almost surely, 2^83419491437 is an apocalyptic number.

It is an amenable number.

83419491437 is a deficient number, since it is larger than the sum of its proper divisors (1).

83419491437 is an equidigital number, since it uses as much as digits as its factorization.

83419491437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

Subtracting from 83419491437 its reverse (73419491438), we obtain a palindrome (9999999999).

The spelling of 83419491437 in words is "eighty-three billion, four hundred nineteen million, four hundred ninety-one thousand, four hundred thirty-seven".