18646827462 has 24 divisors (see below), whose sum is σ = 40425906456. Its totient is φ = 6211848096.

The previous prime is 18646827461. The next prime is 18646827469. The reversal of 18646827462 is 26472864681.

It is a happy number.

It is a super-2 number, since 2×18646827462² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18646827399 and 18646827408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18646827461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282768 + ... + 342419.

It is an arithmetic number, because the mean of its divisors is an integer number (1684412769).

Almost surely, 2^18646827462 is an apocalyptic number.

18646827462 is an abundant number, since it is smaller than the sum of its proper divisors (21779078994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18646827462 is a wasteful number, since it uses less digits than its factorization.

18646827462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626852 (or 626849 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The spelling of 18646827462 in words is "eighteen billion, six hundred forty-six million, eight hundred twenty-seven thousand, four hundred sixty-two".