27763813816 has 32 divisors (see below), whose sum is σ = 52503580800. Its totient is φ = 13763363040.

The previous prime is 27763813811. The next prime is 27763813817. The reversal of 27763813816 is 61831836772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27763813811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412675 + ... + 475213.

It is an arithmetic number, because the mean of its divisors is an integer number (1640736900).

Almost surely, 2^27763813816 is an apocalyptic number.

It is an amenable number.

27763813816 is a deficient number, since it is larger than the sum of its proper divisors (24739766984).

27763813816 is a wasteful number, since it uses less digits than its factorization.

27763813816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63019 (or 63015 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The spelling of 27763813816 in words is "twenty-seven billion, seven hundred sixty-three million, eight hundred thirteen thousand, eight hundred sixteen".