5391891814 has 8 divisors (see below), whose sum is σ = 8348735808. Its totient is φ = 2608979880.

The previous prime is 5391891797. The next prime is 5391891851. The reversal of 5391891814 is 4181981935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43482937 + ... + 43483060.

It is an arithmetic number, because the mean of its divisors is an integer number (1043591976).

Almost surely, 2^5391891814 is an apocalyptic number.

5391891814 is a deficient number, since it is larger than the sum of its proper divisors (2956843994).

5391891814 is a wasteful number, since it uses less digits than its factorization.

5391891814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86966030.

The product of its digits is 311040, while the sum is 49.

The square root of 5391891814 is about 73429.5023406805. The cubic root of 5391891814 is about 1753.5321112308.

The spelling of 5391891814 in words is "five billion, three hundred ninety-one million, eight hundred ninety-one thousand, eight hundred fourteen".