185348818469 has 16 divisors (see below), whose sum is σ = 189343238400. Its totient is φ = 181394640000.

The previous prime is 185348818451. The next prime is 185348818471. The reversal of 185348818469 is 964818843581.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185348818469 is a prime.

It is a super-2 number, since 2×185348818469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185348817469) 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, 16601249 + ... + 16612409.

It is an arithmetic number, because the mean of its divisors is an integer number (11833952400).

Almost surely, 2^185348818469 is an apocalyptic number.

It is an amenable number.

185348818469 is a deficient number, since it is larger than the sum of its proper divisors (3994419931).

185348818469 is a wasteful number, since it uses less digits than its factorization.

185348818469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12932.

The product of its digits is 53084160, while the sum is 65.

The spelling of 185348818469 in words is "one hundred eighty-five billion, three hundred forty-eight million, eight hundred eighteen thousand, four hundred sixty-nine".