83073772878 has 16 divisors (see below), whose sum is σ = 167415849216. Its totient is φ = 27479873720.

The previous prime is 83073772877. The next prime is 83073772883. The reversal of 83073772878 is 87827737038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83073772877) 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, 52845126 + ... + 52846697.

It is an arithmetic number, because the mean of its divisors is an integer number (10463490576).

Almost surely, 2^83073772878 is an apocalyptic number.

83073772878 is an abundant number, since it is smaller than the sum of its proper divisors (84342076338).

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

83073772878 is a wasteful number, since it uses less digits than its factorization.

83073772878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105691959.

The product of its (nonzero) digits is 22127616, while the sum is 60.

The spelling of 83073772878 in words is "eighty-three billion, seventy-three million, seven hundred seventy-two thousand, eight hundred seventy-eight".