27933023540 has 24 divisors (see below), whose sum is σ = 59766131880. Its totient is φ = 10962393728.

The previous prime is 27933023519. The next prime is 27933023579. The reversal of 27933023540 is 4532033972.

It can be written as a sum of positive squares in 4 ways, for example, as 7808196496 + 20124827044 = 88364^2 + 141862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27933023494 and 27933023503.

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, 13174895 + ... + 13177014.

It is an arithmetic number, because the mean of its divisors is an integer number (2490255495).

Almost surely, 2^27933023540 is an apocalyptic number.

27933023540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27933023540 is an abundant number, since it is smaller than the sum of its proper divisors (31833108340).

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

27933023540 is a wasteful number, since it uses less digits than its factorization.

27933023540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26351971 (or 26351969 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 27933023540 in words is "twenty-seven billion, nine hundred thirty-three million, twenty-three thousand, five hundred forty".