18058433948 has 12 divisors (see below), whose sum is σ = 33265536360. Its totient is φ = 8553994992.

The previous prime is 18058433947. The next prime is 18058433959. The reversal of 18058433948 is 84933485081.

It is a super-2 number, since 2×18058433948² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18058433948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18058433947) 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, 118805411 + ... + 118805562.

It is an arithmetic number, because the mean of its divisors is an integer number (2772128030).

Almost surely, 2^18058433948 is an apocalyptic number.

It is an amenable number.

18058433948 is a deficient number, since it is larger than the sum of its proper divisors (15207102412).

18058433948 is a wasteful number, since it uses less digits than its factorization.

18058433948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237610996 (or 237610994 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 18058433948 in words is "eighteen billion, fifty-eight million, four hundred thirty-three thousand, nine hundred forty-eight".