18072403679 has 8 divisors (see below), whose sum is σ = 20752999680. Its totient is φ = 15564749400.

The previous prime is 18072403667. The next prime is 18072403681. The reversal of 18072403679 is 97630427081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18072403679 - 2³² = 13777436383 is a prime.

It is a super-2 number, since 2×18072403679² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18072003679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43235207 + ... + 43235624.

It is an arithmetic number, because the mean of its divisors is an integer number (2594124960).

Almost surely, 2^18072403679 is an apocalyptic number.

18072403679 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18072403679 is a deficient number, since it is larger than the sum of its proper divisors (2680596001).

18072403679 is a wasteful number, since it uses less digits than its factorization.

18072403679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86470861.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 18072403679 in words is "eighteen billion, seventy-two million, four hundred three thousand, six hundred seventy-nine".