83854432363186 has 16 divisors (see below), whose sum is σ = 129109421443608. Its totient is φ = 40831569072000.

The previous prime is 83854432363067. The next prime is 83854432363187. The reversal of 83854432363186 is 68136323445838.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 83838104379225 + 16327983961 = 9156315^2 + 127781^2 .

It is a super-2 number, since 2×83854432363186² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83854432363187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3402618435 + ... + 3402643078.

Almost surely, 2^{83854432363186} is an apocalyptic number.

83854432363186 is a deficient number, since it is larger than the sum of its proper divisors (45254989080422).

83854432363186 is a wasteful number, since it uses less digits than its factorization.

83854432363186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805261677.

The product of its digits is 238878720, while the sum is 64.

The spelling of 83854432363186 in words is "eighty-three trillion, eight hundred fifty-four billion, four hundred thirty-two million, three hundred sixty-three thousand, one hundred eighty-six".