18648722654 has 8 divisors (see below), whose sum is σ = 28655354448. Its totient is φ = 9096937840.

The previous prime is 18648722639. The next prime is 18648722711. The reversal of 18648722654 is 45622784681.

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

It is a junction number, because it is equal to n+sod(n) for n = 18648722596 and 18648722605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113711642 + ... + 113711805.

It is an arithmetic number, because the mean of its divisors is an integer number (3581919306).

Almost surely, 2^18648722654 is an apocalyptic number.

18648722654 is a deficient number, since it is larger than the sum of its proper divisors (10006631794).

18648722654 is a wasteful number, since it uses less digits than its factorization.

18648722654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227423490.

The product of its digits is 5160960, while the sum is 53.

The spelling of 18648722654 in words is "eighteen billion, six hundred forty-eight million, seven hundred twenty-two thousand, six hundred fifty-four".