27397427700 has 72 divisors (see below), whose sum is σ = 79299924480. Its totient is φ = 7303212800.

The previous prime is 27397427693. The next prime is 27397427767. The reversal of 27397427700 is 772479372.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27397427700.

It is a congruent number.

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, 847840 + ... + 879560.

It is an arithmetic number, because the mean of its divisors is an integer number (1101387840).

Almost surely, 2^27397427700 is an apocalyptic number.

27397427700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27397427700 is an abundant number, since it is smaller than the sum of its proper divisors (51902496780).

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

27397427700 is a wasteful number, since it uses less digits than its factorization.

27397427700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34617 (or 34610 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 48.

The spelling of 27397427700 in words is "twenty-seven billion, three hundred ninety-seven million, four hundred twenty-seven thousand, seven hundred".