18494696958 has 32 divisors (see below), whose sum is σ = 37173620736. Its totient is φ = 6134272128.

The previous prime is 18494696947. The next prime is 18494696981. The reversal of 18494696958 is 85969649481.

It is a junction number, because it is equal to n+sod(n) for n = 18494696892 and 18494696901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985741 + ... + 1004327.

It is an arithmetic number, because the mean of its divisors is an integer number (1161675648).

Almost surely, 2^18494696958 is an apocalyptic number.

18494696958 is an abundant number, since it is smaller than the sum of its proper divisors (18678923778).

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

18494696958 is a wasteful number, since it uses less digits than its factorization.

18494696958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19408.

The product of its digits is 134369280, while the sum is 69.

The spelling of 18494696958 in words is "eighteen billion, four hundred ninety-four million, six hundred ninety-six thousand, nine hundred fifty-eight".