2687132190 has 64 divisors (see below), whose sum is σ = 6881644800. Its totient is φ = 669544704.

The previous prime is 2687132177. The next prime is 2687132219. The reversal of 2687132190 is 912317862.

It is a super-2 number, since 2×2687132190² = 14441358813068392200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9321 + ... + 73899.

It is an arithmetic number, because the mean of its divisors is an integer number (107525700).

Almost surely, 2^2687132190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2687132190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3440822400).

2687132190 is an abundant number, since it is smaller than the sum of its proper divisors (4194512610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2687132190 is a wasteful number, since it uses less digits than its factorization.

2687132190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64681.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2687132190 is about 51837.5557872861. Note that the first 3 decimals coincide. The cubic root of 2687132190 is about 1390.2610123511.

The spelling of 2687132190 in words is "two billion, six hundred eighty-seven million, one hundred thirty-two thousand, one hundred ninety".