18953149126 has 8 divisors (see below), whose sum is σ = 29665798704. Its totient is φ = 9064549560.

The previous prime is 18953149121. The next prime is 18953149133. The reversal of 18953149126 is 62194135981.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18953149126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18953149121) 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, 206012445 + ... + 206012536.

It is an arithmetic number, because the mean of its divisors is an integer number (3708224838).

Almost surely, 2^18953149126 is an apocalyptic number.

18953149126 is a deficient number, since it is larger than the sum of its proper divisors (10712649578).

18953149126 is a wasteful number, since it uses less digits than its factorization.

18953149126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412025006.

The product of its digits is 466560, while the sum is 49.

The spelling of 18953149126 in words is "eighteen billion, nine hundred fifty-three million, one hundred forty-nine thousand, one hundred twenty-six".