18147514734 has 24 divisors (see below), whose sum is σ = 39322277280. Its totient is φ = 6048762048.

The previous prime is 18147514673. The next prime is 18147514741. The reversal of 18147514734 is 43741574181.

18147514734 is a `hidden beast` number, since 1 + 8 + 1 + 475 + 147 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18147514734.

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, 365787 + ... + 412425.

It is an arithmetic number, because the mean of its divisors is an integer number (1638428220).

Almost surely, 2^18147514734 is an apocalyptic number.

18147514734 is an abundant number, since it is smaller than the sum of its proper divisors (21174762546).

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

18147514734 is a wasteful number, since it uses less digits than its factorization.

18147514734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68264 (or 68261 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The spelling of 18147514734 in words is "eighteen billion, one hundred forty-seven million, five hundred fourteen thousand, seven hundred thirty-four".