19545114426 has 16 divisors (see below), whose sum is σ = 39371455200. Its totient is φ = 6468167088.

The previous prime is 19545114361. The next prime is 19545114431. The reversal of 19545114426 is 62441154591.

It is a super-2 number, since 2×19545114426² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11716861 + ... + 11718528.

It is an arithmetic number, because the mean of its divisors is an integer number (2460715950).

Almost surely, 2^19545114426 is an apocalyptic number.

19545114426 is an abundant number, since it is smaller than the sum of its proper divisors (19826340774).

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

19545114426 is a wasteful number, since it uses less digits than its factorization.

19545114426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23435533.

The product of its digits is 172800, while the sum is 42.

The spelling of 19545114426 in words is "nineteen billion, five hundred forty-five million, one hundred fourteen thousand, four hundred twenty-six".