27953988747384 has 64 divisors (see below), whose sum is σ = 79888796951040. Its totient is φ = 7984828160640.

The previous prime is 27953988747379. The next prime is 27953988747397. The reversal of 27953988747384 is 48374788935972.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a junction number, because it is equal to n+sod(n) for n = 27953988747297 and 27953988747306.

It is a congruent number.

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, 20437347 + ... + 21762194.

It is an arithmetic number, because the mean of its divisors is an integer number (1248262452360).

Almost surely, 2^{27953988747384} is an apocalyptic number.

27953988747384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27953988747384 is an abundant number, since it is smaller than the sum of its proper divisors (51934808203656).

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

27953988747384 is a wasteful number, since it uses less digits than its factorization.

27953988747384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42203500 (or 42203496 counting only the distinct ones).

The product of its digits is 20483850240, while the sum is 84.

The spelling of 27953988747384 in words is "twenty-seven trillion, nine hundred fifty-three billion, nine hundred eighty-eight million, seven hundred forty-seven thousand, three hundred eighty-four".