38222172542 has 4 divisors (see below), whose sum is σ = 57333258816. Its totient is φ = 19111086270.

The previous prime is 38222172539. The next prime is 38222172553. The reversal of 38222172542 is 24527122283.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 38222172496 and 38222172505.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 9555543134 + ... + 9555543137.

It is an arithmetic number, because the mean of its divisors is an integer number (14333314704).

Almost surely, 2^38222172542 is an apocalyptic number.

38222172542 is a deficient number, since it is larger than the sum of its proper divisors (19111086274).

38222172542 is a wasteful number, since it uses less digits than its factorization.

38222172542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19111086273.

The product of its digits is 107520, while the sum is 38.

The spelling of 38222172542 in words is "thirty-eight billion, two hundred twenty-two million, one hundred seventy-two thousand, five hundred forty-two".