67834477018 has 48 divisors (see below), whose sum is σ = 136720229184. Its totient is φ = 24874362240.

The previous prime is 67834476979. The next prime is 67834477049. The reversal of 67834477018 is 81077443876.

It is a self number, because there is not a number n which added to its sum of digits gives 67834477018.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1832446 + ... + 1869097.

It is an arithmetic number, because the mean of its divisors is an integer number (2848338108).

Almost surely, 2^67834477018 is an apocalyptic number.

67834477018 is an abundant number, since it is smaller than the sum of its proper divisors (68885752166).

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

67834477018 is a wasteful number, since it uses less digits than its factorization.

67834477018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701587 (or 3701580 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 55.

The spelling of 67834477018 in words is "sixty-seven billion, eight hundred thirty-four million, four hundred seventy-seven thousand, eighteen".