27819933072 has 40 divisors (see below), whose sum is σ = 71952519744. Its totient is φ = 9262425984.

The previous prime is 27819933047. The next prime is 27819933079. The reversal of 27819933072 is 27033991872.

It is a super-2 number, since 2×27819933072² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27819933079) 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, 298788 + ... + 380675.

Almost surely, 2^27819933072 is an apocalyptic number.

It is an amenable number.

27819933072 is an abundant number, since it is smaller than the sum of its proper divisors (44132586672).

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

27819933072 is a wasteful number, since it uses less digits than its factorization.

27819933072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680327 (or 680321 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 27819933072 in words is "twenty-seven billion, eight hundred nineteen million, nine hundred thirty-three thousand, seventy-two".