2137691847 has 8 divisors (see below), whose sum is σ = 2854570480. Its totient is φ = 1422970560.

The previous prime is 2137691839. The next prime is 2137691849. The reversal of 2137691847 is 7481967312.

It is a happy number.

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

It is not a de Polignac number, because 2137691847 - 2³ = 2137691839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2137691796 and 2137691805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137691849) 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, 537022 + ... + 540987.

It is an arithmetic number, because the mean of its divisors is an integer number (356821310).

Almost surely, 2^2137691847 is an apocalyptic number.

2137691847 is a deficient number, since it is larger than the sum of its proper divisors (716878633).

2137691847 is a wasteful number, since it uses less digits than its factorization.

2137691847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078673.

The product of its digits is 508032, while the sum is 48.

The square root of 2137691847 is about 46235.1797552470. The cubic root of 2137691847 is about 1288.1952703359.

The spelling of 2137691847 in words is "two billion, one hundred thirty-seven million, six hundred ninety-one thousand, eight hundred forty-seven".