83006405437 has 2 divisors, whose sum is σ = 83006405438. Its totient is φ = 83006405436.

The previous prime is 83006405387. The next prime is 83006405441. The reversal of 83006405437 is 73450460038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68280825636 + 14725579801 = 261306^2 + 121349^2 .

It is a cyclic number.

It is not a de Polignac number, because 83006405437 - 2⁷ = 83006405309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83006405437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83006405137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41503202718 + 41503202719.

It is an arithmetic number, because the mean of its divisors is an integer number (41503202719).

Almost surely, 2^83006405437 is an apocalyptic number.

It is an amenable number.

83006405437 is a deficient number, since it is larger than the sum of its proper divisors (1).

83006405437 is an equidigital number, since it uses as much as digits as its factorization.

83006405437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 83006405437 in words is "eighty-three billion, six million, four hundred five thousand, four hundred thirty-seven".