1937631131005 has 4 divisors (see below), whose sum is σ = 2325157357212. Its totient is φ = 1550104904800.

The previous prime is 1937631131003. The next prime is 1937631131053. The reversal of 1937631131005 is 5001311367391.

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

It can be written as a sum of positive squares in 2 ways, for example, as 329753874564 + 1607877256441 = 574242^2 + 1268021^2 .

It is not a de Polignac number, because 1937631131005 - 2¹ = 1937631131003 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 (1937631131003) 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, 193763113096 + ... + 193763113105.

It is an arithmetic number, because the mean of its divisors is an integer number (581289339303).

Almost surely, 2^{1937631131005} is an apocalyptic number.

It is an amenable number.

1937631131005 is a deficient number, since it is larger than the sum of its proper divisors (387526226207).

1937631131005 is an equidigital number, since it uses as much as digits as its factorization.

1937631131005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387526226206.

The product of its (nonzero) digits is 51030, while the sum is 40.

Adding to 1937631131005 its reverse (5001311367391), we get a palindrome (6938942498396).

The spelling of 1937631131005 in words is "one trillion, nine hundred thirty-seven billion, six hundred thirty-one million, one hundred thirty-one thousand, five".