27308280372 has 12 divisors (see below), whose sum is σ = 63719320896. Its totient is φ = 9102760120.

The previous prime is 27308280371. The next prime is 27308280437.

27308280372 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27308280371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137845004 + ... + 1137845027.

It is an arithmetic number, because the mean of its divisors is an integer number (5309943408).

Almost surely, 2^27308280372 is an apocalyptic number.

It is an amenable number.

27308280372 is an abundant number, since it is smaller than the sum of its proper divisors (36411040524).

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

27308280372 is a wasteful number, since it uses less digits than its factorization.

27308280372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275690038 (or 2275690036 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 27308280372 in words is "twenty-seven billion, three hundred eight million, two hundred eighty thousand, three hundred seventy-two".