27977470900 has 72 divisors (see below), whose sum is σ = 61171529216. Its totient is φ = 11106460800.

The previous prime is 27977470867. The next prime is 27977470909. The reversal of 27977470900 is 907477972.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27977470909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7504837 + ... + 7508563.

Almost surely, 2^27977470900 is an apocalyptic number.

27977470900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27977470900 is an abundant number, since it is smaller than the sum of its proper divisors (33194058316).

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

27977470900 is a wasteful number, since it uses less digits than its factorization.

27977470900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289 (or 4282 counting only the distinct ones).

The product of its (nonzero) digits is 1555848, while the sum is 52.

The spelling of 27977470900 in words is "twenty-seven billion, nine hundred seventy-seven million, four hundred seventy thousand, nine hundred".