84616940077 has 4 divisors (see below), whose sum is σ = 84617852956. Its totient is φ = 84616027200.

The previous prime is 84616939999. The next prime is 84616940101. The reversal of 84616940077 is 77004961648.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 31376453956 + 53240486121 = 177134^2 + 230739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84616940077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84616940977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299388 + ... + 508789.

It is an arithmetic number, because the mean of its divisors is an integer number (21154463239).

Almost surely, 2^84616940077 is an apocalyptic number.

It is an amenable number.

84616940077 is a deficient number, since it is larger than the sum of its proper divisors (912879).

84616940077 is a wasteful number, since it uses less digits than its factorization.

84616940077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912878.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 84616940077 in words is "eighty-four billion, six hundred sixteen million, nine hundred forty thousand, seventy-seven".