83940764078 has 8 divisors (see below), whose sum is σ = 126218998560. Its totient is φ = 41867764560.

The previous prime is 83940764057. The next prime is 83940764101. The reversal of 83940764078 is 87046704938.

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

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, 51307718 + ... + 51309353.

It is an arithmetic number, because the mean of its divisors is an integer number (15777374820).

Almost surely, 2^83940764078 is an apocalyptic number.

83940764078 is a deficient number, since it is larger than the sum of its proper divisors (42278234482).

83940764078 is a wasteful number, since it uses less digits than its factorization.

83940764078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102617482.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 83940764078 in words is "eighty-three billion, nine hundred forty million, seven hundred sixty-four thousand, seventy-eight".