20131937727 has 16 divisors (see below), whose sum is σ = 31005338112. Its totient is φ = 11483457920.

The previous prime is 20131937719. The next prime is 20131937729. The reversal of 20131937727 is 72773913102.

It is not a de Polignac number, because 20131937727 - 2³ = 20131937719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131937729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17942343 + ... + 17943464.

It is an arithmetic number, because the mean of its divisors is an integer number (1937833632).

Almost surely, 2^20131937727 is an apocalyptic number.

20131937727 is a deficient number, since it is larger than the sum of its proper divisors (10873400385).

20131937727 is a wasteful number, since it uses less digits than its factorization.

20131937727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35885838.

The product of its (nonzero) digits is 111132, while the sum is 42.

The spelling of 20131937727 in words is "twenty billion, one hundred thirty-one million, nine hundred thirty-seven thousand, seven hundred twenty-seven".