83947842534 has 8 divisors (see below), whose sum is σ = 167895685080. Its totient is φ = 27982614176.

The previous prime is 83947842467. The next prime is 83947842541. The reversal of 83947842534 is 43524874938.

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

83947842534 is an admirable number.

It is a super-2 number, since 2×83947842534² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6995653539 + ... + 6995653550.

It is an arithmetic number, because the mean of its divisors is an integer number (20986960635).

Almost surely, 2^83947842534 is an apocalyptic number.

83947842534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

83947842534 is a wasteful number, since it uses less digits than its factorization.

83947842534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13991307094.

The product of its digits is 23224320, while the sum is 57.

The spelling of 83947842534 in words is "eighty-three billion, nine hundred forty-seven million, eight hundred forty-two thousand, five hundred thirty-four".