18408142707 has 8 divisors (see below), whose sum is σ = 24594590976. Its totient is φ = 12246894792.

The previous prime is 18408142693. The next prime is 18408142729. The reversal of 18408142707 is 70724180481.

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

It is not a de Polignac number, because 18408142707 - 2¹⁸ = 18407880563 is a prime.

It is a super-3 number, since 3×18408142707³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18408142307) 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, 6298383 + ... + 6301304.

It is an arithmetic number, because the mean of its divisors is an integer number (3074323872).

Almost surely, 2^18408142707 is an apocalyptic number.

18408142707 is a deficient number, since it is larger than the sum of its proper divisors (6186448269).

18408142707 is a wasteful number, since it uses less digits than its factorization.

18408142707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12600177.

The product of its (nonzero) digits is 100352, while the sum is 42.

The spelling of 18408142707 in words is "eighteen billion, four hundred eight million, one hundred forty-two thousand, seven hundred seven".