27964624186340 has 24 divisors (see below), whose sum is σ = 58756997876472. Its totient is φ = 11179890229760.

The previous prime is 27964624186327. The next prime is 27964624186357. The reversal of 27964624186340 is 4368142646972.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 248779493284 + 27715844693056 = 498778^2 + 5264584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372426821 + ... + 372501900.

It is an arithmetic number, because the mean of its divisors is an integer number (2448208244853).

Almost surely, 2^{27964624186340} is an apocalyptic number.

27964624186340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27964624186340 is an abundant number, since it is smaller than the sum of its proper divisors (30792373690132).

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

27964624186340 is a wasteful number, since it uses less digits than its factorization.

27964624186340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744930607 (or 744930605 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 62.

The spelling of 27964624186340 in words is "twenty-seven trillion, nine hundred sixty-four billion, six hundred twenty-four million, one hundred eighty-six thousand, three hundred forty".