18272277542 has 16 divisors (see below), whose sum is σ = 28855982400. Its totient is φ = 8653784040.

The previous prime is 18272277511. The next prime is 18272277557. The reversal of 18272277542 is 24577227281.

It is a super-2 number, since 2×18272277542² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197309 + ... + 274727.

It is an arithmetic number, because the mean of its divisors is an integer number (1803498900).

Almost surely, 2^18272277542 is an apocalyptic number.

18272277542 is a deficient number, since it is larger than the sum of its proper divisors (10583704858).

18272277542 is a wasteful number, since it uses less digits than its factorization.

18272277542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83651.

The product of its digits is 878080, while the sum is 47.

The spelling of 18272277542 in words is "eighteen billion, two hundred seventy-two million, two hundred seventy-seven thousand, five hundred forty-two".