2687893520 has 80 divisors (see below), whose sum is σ = 7084338240. Its totient is φ = 940211712.

The previous prime is 2687893519. The next prime is 2687893541. The reversal of 2687893520 is 253987862.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48254 + ... + 87773.

It is an arithmetic number, because the mean of its divisors is an integer number (88554228).

Almost surely, 2^2687893520 is an apocalyptic number.

2687893520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2687893520 is an abundant number, since it is smaller than the sum of its proper divisors (4396444720).

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

2687893520 is a wasteful number, since it uses less digits than its factorization.

2687893520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136072 (or 136066 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 2687893520 is about 51844.8986882991. The cubic root of 2687893520 is about 1390.3922982222.

The spelling of 2687893520 in words is "two billion, six hundred eighty-seven million, eight hundred ninety-three thousand, five hundred twenty".