27973388322920 has 64 divisors (see below), whose sum is σ = 66715001740800. Its totient is φ = 10519698355200.

The previous prime is 27973388322853. The next prime is 27973388322949. The reversal of 27973388322920 is 2922388337972.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21756656 + ... + 23006495.

It is an arithmetic number, because the mean of its divisors is an integer number (1042421902200).

Almost surely, 2^{27973388322920} is an apocalyptic number.

27973388322920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27973388322920 is an abundant number, since it is smaller than the sum of its proper divisors (38741613417880).

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

27973388322920 is a wasteful number, since it uses less digits than its factorization.

27973388322920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44764098 (or 44764094 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 65.

The spelling of 27973388322920 in words is "twenty-seven trillion, nine hundred seventy-three billion, three hundred eighty-eight million, three hundred twenty-two thousand, nine hundred twenty".