2131037887445 has 8 divisors (see below), whose sum is σ = 2557448867544. Its totient is φ = 1704694708224.

The previous prime is 2131037887441. The next prime is 2131037887457. The reversal of 2131037887445 is 5447887301312.

It can be written as a sum of positive squares in 4 ways, for example, as 1351380675121 + 779657212324 = 1162489^2 + 882982^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131037887445 - 2² = 2131037887441 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 (2131037887441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16881044 + ... + 17006813.

It is an arithmetic number, because the mean of its divisors is an integer number (319681108443).

Almost surely, 2^{2131037887445} is an apocalyptic number.

It is an amenable number.

2131037887445 is a deficient number, since it is larger than the sum of its proper divisors (426410980099).

2131037887445 is a wasteful number, since it uses less digits than its factorization.

2131037887445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33900439.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 2131037887445 in words is "two trillion, one hundred thirty-one billion, thirty-seven million, eight hundred eighty-seven thousand, four hundred forty-five".