27922391552 has 160 divisors (see below), whose sum is σ = 65707044480. Its totient is φ = 11719966720.

The previous prime is 27922391551. The next prime is 27922391587. The reversal of 27922391552 is 25519322972.

It is a junction number, because it is equal to n+sod(n) for n = 27922391497 and 27922391506.

It is not an unprimeable number, because it can be changed into a prime (27922391551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3752828 + ... + 3760260.

It is an arithmetic number, because the mean of its divisors is an integer number (410669028).

Almost surely, 2^27922391552 is an apocalyptic number.

27922391552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27922391552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32853522240).

27922391552 is an abundant number, since it is smaller than the sum of its proper divisors (37784652928).

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

27922391552 is a wasteful number, since it uses less digits than its factorization.

27922391552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514 (or 7498 counting only the distinct ones).

The product of its digits is 680400, while the sum is 47.

The spelling of 27922391552 in words is "twenty-seven billion, nine hundred twenty-two million, three hundred ninety-one thousand, five hundred fifty-two".