27821755050 has 48 divisors (see below), whose sum is σ = 69100121952. Its totient is φ = 7408148800.

The previous prime is 27821755033. The next prime is 27821755057. The reversal of 27821755050 is 5055712872.

It is a junction number, because it is equal to n+sod(n) for n = 27821754993 and 27821755011.

It is not an unprimeable number, because it can be changed into a prime (27821755057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35436 + ... + 238535.

It is an arithmetic number, because the mean of its divisors is an integer number (1439585874).

Almost surely, 2^27821755050 is an apocalyptic number.

27821755050 is an abundant number, since it is smaller than the sum of its proper divisors (41278366902).

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

27821755050 is a wasteful number, since it uses less digits than its factorization.

27821755050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274663 (or 274658 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 42.

The spelling of 27821755050 in words is "twenty-seven billion, eight hundred twenty-one million, seven hundred fifty-five thousand, fifty".