20174722848 has 72 divisors (see below), whose sum is σ = 65567855808. Its totient is φ = 5764205952.

The previous prime is 20174722847. The next prime is 20174722859. The reversal of 20174722848 is 84822747102.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×20174722848² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20174722847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5001636 + ... + 5005667.

It is an arithmetic number, because the mean of its divisors is an integer number (910664664).

Almost surely, 2^20174722848 is an apocalyptic number.

20174722848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20174722848 is an abundant number, since it is smaller than the sum of its proper divisors (45393132960).

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

20174722848 is a wasteful number, since it uses less digits than its factorization.

20174722848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007326 (or 10007315 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 45.

The spelling of 20174722848 in words is "twenty billion, one hundred seventy-four million, seven hundred twenty-two thousand, eight hundred forty-eight".