27122487140 has 96 divisors (see below), whose sum is σ = 71146543104. Its totient is φ = 8469780480.

The previous prime is 27122487121. The next prime is 27122487143. The reversal of 27122487140 is 4178422172.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27122487094 and 27122487103.

It is not an unprimeable number, because it can be changed into a prime (27122487143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110027 + ... + 257586.

It is an arithmetic number, because the mean of its divisors is an integer number (741109824).

Almost surely, 2^27122487140 is an apocalyptic number.

27122487140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27122487140 is an abundant number, since it is smaller than the sum of its proper divisors (44024055964).

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

27122487140 is a wasteful number, since it uses less digits than its factorization.

27122487140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367677 (or 367675 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The spelling of 27122487140 in words is "twenty-seven billion, one hundred twenty-two million, four hundred eighty-seven thousand, one hundred forty".