537896138687 has 4 divisors (see below), whose sum is σ = 537899771640. Its totient is φ = 537892505736.

The previous prime is 537896138683. The next prime is 537896138737. The reversal of 537896138687 is 786831698735.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786831698735 = 5 ⋅157366339747.

It is a cyclic number.

It is not a de Polignac number, because 537896138687 - 2² = 537896138683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 537896138687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537896138683) 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, 1584512 + ... + 1893797.

It is an arithmetic number, because the mean of its divisors is an integer number (134474942910).

Almost surely, 2^537896138687 is an apocalyptic number.

537896138687 is a deficient number, since it is larger than the sum of its proper divisors (3632953).

537896138687 is a wasteful number, since it uses less digits than its factorization.

537896138687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632952.

The product of its digits is 365783040, while the sum is 71.

The spelling of 537896138687 in words is "five hundred thirty-seven billion, eight hundred ninety-six million, one hundred thirty-eight thousand, six hundred eighty-seven".