5637871990 has 8 divisors (see below), whose sum is σ = 10148169600. Its totient is φ = 2255148792.

The previous prime is 5637871969. The next prime is 5637871997. The reversal of 5637871990 is 991787365.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5637871997) 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, 281893590 + ... + 281893609.

It is an arithmetic number, because the mean of its divisors is an integer number (1268521200).

Almost surely, 2^5637871990 is an apocalyptic number.

5637871990 is a deficient number, since it is larger than the sum of its proper divisors (4510297610).

5637871990 is a wasteful number, since it uses less digits than its factorization.

5637871990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563787206.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The square root of 5637871990 is about 75085.7642299790. The cubic root of 5637871990 is about 1779.8021904916.

The spelling of 5637871990 in words is "five billion, six hundred thirty-seven million, eight hundred seventy-one thousand, nine hundred ninety".