2687891498 has 8 divisors (see below), whose sum is σ = 4042476480. Its totient is φ = 1340399340.

The previous prime is 2687891491. The next prime is 2687891519. The reversal of 2687891498 is 8941987862.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2687891498.

It is not an unprimeable number, because it can be changed into a prime (2687891491) 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, 1772258 + ... + 1773773.

It is an arithmetic number, because the mean of its divisors is an integer number (505309560).

Almost surely, 2^2687891498 is an apocalyptic number.

2687891498 is a deficient number, since it is larger than the sum of its proper divisors (1354584982).

2687891498 is a wasteful number, since it uses less digits than its factorization.

2687891498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546412.

The product of its digits is 13934592, while the sum is 62.

The square root of 2687891498 is about 51844.8791878234. The cubic root of 2687891498 is about 1390.3919495757.

The spelling of 2687891498 in words is "two billion, six hundred eighty-seven million, eight hundred ninety-one thousand, four hundred ninety-eight".