27860801100 has 72 divisors (see below), whose sum is σ = 87938829888. Its totient is φ = 6754132800.

The previous prime is 27860801099. The next prime is 27860801113. The reversal of 27860801100 is 110806872.

It is a happy number.

It is a super-2 number, since 2×27860801100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4218034 + ... + 4224633.

Almost surely, 2^27860801100 is an apocalyptic number.

27860801100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27860801100 is an abundant number, since it is smaller than the sum of its proper divisors (60078028788).

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

27860801100 is a wasteful number, since it uses less digits than its factorization.

27860801100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8442695 (or 8442688 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The spelling of 27860801100 in words is "twenty-seven billion, eight hundred sixty million, eight hundred one thousand, one hundred".