5487531894 has 32 divisors (see below), whose sum is σ = 13132556640. Its totient is φ = 1688471136.

The previous prime is 5487531893. The next prime is 5487531913. The reversal of 5487531894 is 4981357845.

5487531894 is a `hidden beast` number, since 548 + 7 + 5 + 3 + 1 + 8 + 94 = 666.

It is a super-2 number, since 2×5487531894² = 60226012575334454472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 5487531894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5487531893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3907797 + ... + 3909200.

It is an arithmetic number, because the mean of its divisors is an integer number (410392395).

Almost surely, 2^5487531894 is an apocalyptic number.

5487531894 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

5487531894 is an abundant number, since it is smaller than the sum of its proper divisors (7645024746).

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

5487531894 is a wasteful number, since it uses less digits than its factorization.

5487531894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817021 (or 7817015 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 5487531894 is about 74077.8772239054. The cubic root of 5487531894 is about 1763.8393173552.

The spelling of 5487531894 in words is "five billion, four hundred eighty-seven million, five hundred thirty-one thousand, eight hundred ninety-four".