83508337531 has 2 divisors, whose sum is σ = 83508337532. Its totient is φ = 83508337530.

The previous prime is 83508337529. The next prime is 83508337607. The reversal of 83508337531 is 13573380538.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83508337531 - 2¹ = 83508337529 is a prime.

It is a super-2 number, since 2×83508337531² (a number of 23 digits) contains 22 as substring.

Together with 83508337529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (83508337501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41754168765 + 41754168766.

It is an arithmetic number, because the mean of its divisors is an integer number (41754168766).

Almost surely, 2^83508337531 is an apocalyptic number.

83508337531 is a deficient number, since it is larger than the sum of its proper divisors (1).

83508337531 is an equidigital number, since it uses as much as digits as its factorization.

83508337531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 83508337531 in words is "eighty-three billion, five hundred eight million, three hundred thirty-seven thousand, five hundred thirty-one".