27826390064 has 20 divisors (see below), whose sum is σ = 58814870280. Its totient is φ = 12648359040.

The previous prime is 27826390061. The next prime is 27826390103. The reversal of 27826390064 is 46009362872.

It is not an unprimeable number, because it can be changed into a prime (27826390061) 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, 79052069 + ... + 79052420.

It is an arithmetic number, because the mean of its divisors is an integer number (2940743514).

Almost surely, 2^27826390064 is an apocalyptic number.

It is an amenable number.

27826390064 is an abundant number, since it is smaller than the sum of its proper divisors (30988480216).

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

27826390064 is a wasteful number, since it uses less digits than its factorization.

27826390064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158104508 (or 158104502 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 27826390064 in words is "twenty-seven billion, eight hundred twenty-six million, three hundred ninety thousand, sixty-four".