83839754578 has 16 divisors (see below), whose sum is σ = 133330932000. Its totient is φ = 39427856352.

The previous prime is 83839754569. The next prime is 83839754591. The reversal of 83839754578 is 87545793838.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7931083 + ... + 7941646.

It is an arithmetic number, because the mean of its divisors is an integer number (8333183250).

Almost surely, 2^83839754578 is an apocalyptic number.

83839754578 is a deficient number, since it is larger than the sum of its proper divisors (49491177422).

83839754578 is a wasteful number, since it uses less digits than its factorization.

83839754578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15872889.

The product of its digits is 203212800, while the sum is 67.

The spelling of 83839754578 in words is "eighty-three billion, eight hundred thirty-nine million, seven hundred fifty-four thousand, five hundred seventy-eight".