83861386147 has 24 divisors (see below), whose sum is σ = 105380053856. Its totient is φ = 65325744000.

The previous prime is 83861386139. The next prime is 83861386171. The reversal of 83861386147 is 74168316838.

It is not a de Polignac number, because 83861386147 - 2³ = 83861386139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83861386127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2985247 + ... + 3013207.

Almost surely, 2^83861386147 is an apocalyptic number.

83861386147 is a deficient number, since it is larger than the sum of its proper divisors (21518667709).

83861386147 is a wasteful number, since it uses less digits than its factorization.

83861386147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31531 (or 31520 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The spelling of 83861386147 in words is "eighty-three billion, eight hundred sixty-one million, three hundred eighty-six thousand, one hundred forty-seven".