18705759465 has 16 divisors (see below), whose sum is σ = 29931939648. Its totient is φ = 9975496896.

The previous prime is 18705759463. The next prime is 18705759469. The reversal of 18705759465 is 56495750781.

It is not a de Polignac number, because 18705759465 - 2¹ = 18705759463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18705759463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134247 + ... + 235443.

It is an arithmetic number, because the mean of its divisors is an integer number (1870746228).

Almost surely, 2^18705759465 is an apocalyptic number.

18705759465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18705759465 is a deficient number, since it is larger than the sum of its proper divisors (11226180183).

18705759465 is a wasteful number, since it uses less digits than its factorization.

18705759465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113528.

The product of its (nonzero) digits is 10584000, while the sum is 57.

The spelling of 18705759465 in words is "eighteen billion, seven hundred five million, seven hundred fifty-nine thousand, four hundred sixty-five".