84623930077 has 2 divisors, whose sum is σ = 84623930078. Its totient is φ = 84623930076.

The previous prime is 84623930051. The next prime is 84623930093. The reversal of 84623930077 is 77003932648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49064908036 + 35559022041 = 221506^2 + 188571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84623930077 is a prime.

It is a super-2 number, since 2×84623930077² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84623930077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84623934077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42311965038 + 42311965039.

It is an arithmetic number, because the mean of its divisors is an integer number (42311965039).

Almost surely, 2^84623930077 is an apocalyptic number.

It is an amenable number.

84623930077 is a deficient number, since it is larger than the sum of its proper divisors (1).

84623930077 is an equidigital number, since it uses as much as digits as its factorization.

84623930077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 84623930077 in words is "eighty-four billion, six hundred twenty-three million, nine hundred thirty thousand, seventy-seven".