27803893734 has 16 divisors (see below), whose sum is σ = 61786430640. Its totient is φ = 9267964560.

The previous prime is 27803893699. The next prime is 27803893787. The reversal of 27803893734 is 43739830872.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 514886921 = 27803893734 / (2 + 7 + 8 + 0 + 3 + 8 + 9 + 3 + 7 + 3 + 4).

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, 257443407 + ... + 257443514.

It is an arithmetic number, because the mean of its divisors is an integer number (3861651915).

Almost surely, 2^27803893734 is an apocalyptic number.

27803893734 is an abundant number, since it is smaller than the sum of its proper divisors (33982536906).

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

27803893734 is a wasteful number, since it uses less digits than its factorization.

27803893734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514886932 (or 514886926 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 27803893734 in words is "twenty-seven billion, eight hundred three million, eight hundred ninety-three thousand, seven hundred thirty-four".