27081651400 has 24 divisors (see below), whose sum is σ = 62964839970. Its totient is φ = 10832660480.

The previous prime is 27081651391. The next prime is 27081651413. The reversal of 27081651400 is 415618072.

It can be written as a sum of positive squares in 3 ways, for example, as 12556098916 + 14525552484 = 112054^2 + 120522^2 .

It is a super-2 number, since 2×27081651400² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67703929 + ... + 67704328.

Almost surely, 2^27081651400 is an apocalyptic number.

27081651400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27081651400 is an abundant number, since it is smaller than the sum of its proper divisors (35883188570).

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

27081651400 is a wasteful number, since it uses less digits than its factorization.

27081651400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135408273 (or 135408264 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 27081651400 in words is "twenty-seven billion, eighty-one million, six hundred fifty-one thousand, four hundred".