18621462385 has 8 divisors (see below), whose sum is σ = 23066585856. Its totient is φ = 14416615920.

The previous prime is 18621462341. The next prime is 18621462407. The reversal of 18621462385 is 58326412681.

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

It is not a de Polignac number, because 18621462385 - 2¹³ = 18621454193 is a prime.

It is a super-2 number, since 2×18621462385² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60069079 + ... + 60069388.

It is an arithmetic number, because the mean of its divisors is an integer number (2883323232).

Almost surely, 2^18621462385 is an apocalyptic number.

It is an amenable number.

18621462385 is a deficient number, since it is larger than the sum of its proper divisors (4445123471).

18621462385 is a wasteful number, since it uses less digits than its factorization.

18621462385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120138503.

The product of its digits is 552960, while the sum is 46.

The spelling of 18621462385 in words is "eighteen billion, six hundred twenty-one million, four hundred sixty-two thousand, three hundred eighty-five".