20548396874 has 16 divisors (see below), whose sum is σ = 31210017120. Its totient is φ = 10145595600.

The previous prime is 20548396823. The next prime is 20548396879. The reversal of 20548396874 is 47869384502.

It is a super-2 number, since 2×20548396874² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20548396879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57644 + ... + 210759.

It is an arithmetic number, because the mean of its divisors is an integer number (1950626070).

Almost surely, 2^20548396874 is an apocalyptic number.

20548396874 is a deficient number, since it is larger than the sum of its proper divisors (10661620246).

20548396874 is a wasteful number, since it uses less digits than its factorization.

20548396874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268885.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 20548396874 in words is "twenty billion, five hundred forty-eight million, three hundred ninety-six thousand, eight hundred seventy-four".