18397448034 has 32 divisors (see below), whose sum is σ = 42178384896. Its totient is φ = 5240529360.

The previous prime is 18397448021. The next prime is 18397448039. The reversal of 18397448034 is 43084479381.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18397448039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647782 + ... + 675585.

It is an arithmetic number, because the mean of its divisors is an integer number (1318074528).

Almost surely, 2^18397448034 is an apocalyptic number.

18397448034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18397448034 is an abundant number, since it is smaller than the sum of its proper divisors (23780936862).

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

18397448034 is a wasteful number, since it uses less digits than its factorization.

18397448034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323710.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 18397448034 in words is "eighteen billion, three hundred ninety-seven million, four hundred forty-eight thousand, thirty-four".