27800053542 has 24 divisors (see below), whose sum is σ = 60237424416. Its totient is φ = 9266072976.

The previous prime is 27800053529. The next prime is 27800053543. The reversal of 27800053542 is 24535000872.

27800053542 is a `hidden beast` number, since 2 + 7 + 80 + 0 + 0 + 535 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 27800053497 and 27800053506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27800053543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291603 + ... + 375009.

It is an arithmetic number, because the mean of its divisors is an integer number (2509892684).

Almost surely, 2^27800053542 is an apocalyptic number.

27800053542 is an abundant number, since it is smaller than the sum of its proper divisors (32437370874).

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

27800053542 is a wasteful number, since it uses less digits than its factorization.

27800053542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101932 (or 101929 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 27800053542 in words is "twenty-seven billion, eight hundred million, fifty-three thousand, five hundred forty-two".