18610648484 has 12 divisors (see below), whose sum is σ = 32569589808. Its totient is φ = 9305051400.

The previous prime is 18610648481. The next prime is 18610648517. The reversal of 18610648484 is 48484601681.

It is a super-2 number, since 2×18610648484² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18610648481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237479 + ... + 305969.

It is an arithmetic number, because the mean of its divisors is an integer number (2714132484).

Almost surely, 2^18610648484 is an apocalyptic number.

It is an amenable number.

18610648484 is a deficient number, since it is larger than the sum of its proper divisors (13958941324).

18610648484 is a wasteful number, since it uses less digits than its factorization.

18610648484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136426 (or 136424 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 50.

The spelling of 18610648484 in words is "eighteen billion, six hundred ten million, six hundred forty-eight thousand, four hundred eighty-four".