18895229078 has 24 divisors (see below), whose sum is σ = 31456208784. Its totient is φ = 8505343440.

The previous prime is 18895229069. The next prime is 18895229147. The reversal of 18895229078 is 87092259881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354101 + ... + 403952.

It is an arithmetic number, because the mean of its divisors is an integer number (1310675366).

Almost surely, 2^18895229078 is an apocalyptic number.

18895229078 is a deficient number, since it is larger than the sum of its proper divisors (12560979706).

18895229078 is a wasteful number, since it uses less digits than its factorization.

18895229078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758180 (or 758169 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 59.

The spelling of 18895229078 in words is "eighteen billion, eight hundred ninety-five million, two hundred twenty-nine thousand, seventy-eight".