5274561987 has 12 divisors (see below), whose sum is σ = 7625213544. Its totient is φ = 3513420000.

The previous prime is 5274561959. The next prime is 5274561997. The reversal of 5274561987 is 7891654725.

5274561987 is a `hidden beast` number, since 5 + 2 + 74 + 561 + 9 + 8 + 7 = 666.

It is not a de Polignac number, because 5274561987 - 2³² = 979594691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5274561947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234889 + ... + 256362.

It is an arithmetic number, because the mean of its divisors is an integer number (635434462).

Almost surely, 2^5274561987 is an apocalyptic number.

5274561987 is a deficient number, since it is larger than the sum of its proper divisors (2350651557).

5274561987 is a wasteful number, since it uses less digits than its factorization.

5274561987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492450 (or 492447 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 5274561987 is about 72626.1797632231. The cubic root of 5274561987 is about 1740.7195230725.

The spelling of 5274561987 in words is "five billion, two hundred seventy-four million, five hundred sixty-one thousand, nine hundred eighty-seven".