2587028991 has 16 divisors (see below), whose sum is σ = 3560208000. Its totient is φ = 1670141088.

The previous prime is 2587028981. The next prime is 2587028993. The reversal of 2587028991 is 1998207852.

It is not a de Polignac number, because 2587028991 - 2⁵ = 2587028959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2587028993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97216 + ... + 120933.

It is an arithmetic number, because the mean of its divisors is an integer number (222513000).

Almost surely, 2^2587028991 is an apocalyptic number.

2587028991 is a deficient number, since it is larger than the sum of its proper divisors (973179009).

2587028991 is a wasteful number, since it uses less digits than its factorization.

2587028991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218278.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 2587028991 is about 50862.8448968400. The cubic root of 2587028991 is about 1372.7783832849.

The spelling of 2587028991 in words is "two billion, five hundred eighty-seven million, twenty-eight thousand, nine hundred ninety-one".