19542248364 has 24 divisors (see below), whose sum is σ = 46710741168. Its totient is φ = 6355202560.

The previous prime is 19542248359. The next prime is 19542248417. The reversal of 19542248364 is 46384224591.

It is a super-2 number, since 2×19542248364² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19859517 + ... + 19860500.

It is an arithmetic number, because the mean of its divisors is an integer number (1946280882).

Almost surely, 2^19542248364 is an apocalyptic number.

It is an amenable number.

19542248364 is an abundant number, since it is smaller than the sum of its proper divisors (27168492804).

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

19542248364 is a wasteful number, since it uses less digits than its factorization.

19542248364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39720065 (or 39720063 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The spelling of 19542248364 in words is "nineteen billion, five hundred forty-two million, two hundred forty-eight thousand, three hundred sixty-four".