84143492691 has 8 divisors (see below), whose sum is σ = 112195199424. Its totient is φ = 56093723880.

The previous prime is 84143492683. The next prime is 84143492711. The reversal of 84143492691 is 19629434148.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84143492691 - 2³ = 84143492683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84143492611) 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, 379945 + ... + 559146.

It is an arithmetic number, because the mean of its divisors is an integer number (14024399928).

Almost surely, 2^84143492691 is an apocalyptic number.

84143492691 is a deficient number, since it is larger than the sum of its proper divisors (28051706733).

84143492691 is a wasteful number, since it uses less digits than its factorization.

84143492691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968961.

The product of its digits is 1492992, while the sum is 51.

The spelling of 84143492691 in words is "eighty-four billion, one hundred forty-three million, four hundred ninety-two thousand, six hundred ninety-one".