2587078398 has 16 divisors (see below), whose sum is σ = 5224392576. Its totient is φ = 853986840.

The previous prime is 2587078357. The next prime is 2587078409. The reversal of 2587078398 is 8938707852.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2092488 + ... + 2093723.

It is an arithmetic number, because the mean of its divisors is an integer number (326524536).

Almost surely, 2^2587078398 is an apocalyptic number.

2587078398 is an abundant number, since it is smaller than the sum of its proper divisors (2637314178).

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

2587078398 is a wasteful number, since it uses less digits than its factorization.

2587078398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186319.

The product of its (nonzero) digits is 6773760, while the sum is 57.

The square root of 2587078398 is about 50863.3305830438. The cubic root of 2587078398 is about 1372.7871223224.

The spelling of 2587078398 in words is "two billion, five hundred eighty-seven million, seventy-eight thousand, three hundred ninety-eight".