2687219490 has 48 divisors (see below), whose sum is σ = 6741963648. Its totient is φ = 685431648.

The previous prime is 2687219471. The next prime is 2687219497. The reversal of 2687219490 is 949127862.

2687219490 = T₄₁₄ + T₄₁₅ + ... + T₂₅₂₉.

It is a super-2 number, since 2×2687219490² = 14442297174871720200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2687219497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68794 + ... + 100533.

It is an arithmetic number, because the mean of its divisors is an integer number (140457576).

Almost surely, 2^2687219490 is an apocalyptic number.

2687219490 is an abundant number, since it is smaller than the sum of its proper divisors (4054744158).

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

2687219490 is a wasteful number, since it uses less digits than its factorization.

2687219490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169383 (or 169360 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 2687219490 is about 51838.3978340380. The cubic root of 2687219490 is about 1390.2760678655.

The spelling of 2687219490 in words is "two billion, six hundred eighty-seven million, two hundred nineteen thousand, four hundred ninety".