537994115999 has 4 divisors (see below), whose sum is σ = 538004966520. Its totient is φ = 537983265480.

The previous prime is 537994115963. The next prime is 537994116007. The reversal of 537994115999 is 999511499735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537994115999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537994115299) 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, 5350544 + ... + 5450165.

It is an arithmetic number, because the mean of its divisors is an integer number (134501241630).

Almost surely, 2^537994115999 is an apocalyptic number.

537994115999 is a deficient number, since it is larger than the sum of its proper divisors (10850521).

537994115999 is a wasteful number, since it uses less digits than its factorization.

537994115999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850520.

The product of its digits is 124002900, while the sum is 71.

The spelling of 537994115999 in words is "five hundred thirty-seven billion, nine hundred ninety-four million, one hundred fifteen thousand, nine hundred ninety-nine".