85137002497 has 4 divisors (see below), whose sum is σ = 85139020800. Its totient is φ = 85134984196.

The previous prime is 85137002471. The next prime is 85137002543. The reversal of 85137002497 is 79420073158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85137002497 - 2⁷ = 85137002369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85137002407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944497 + ... + 1030702.

It is an arithmetic number, because the mean of its divisors is an integer number (21284755200).

Almost surely, 2^85137002497 is an apocalyptic number.

It is an amenable number.

85137002497 is a deficient number, since it is larger than the sum of its proper divisors (2018303).

85137002497 is a wasteful number, since it uses less digits than its factorization.

85137002497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018302.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 85137002497 in words is "eighty-five billion, one hundred thirty-seven million, two thousand, four hundred ninety-seven".