98764877693 has 2 divisors, whose sum is σ = 98764877694. Its totient is φ = 98764877692.

The previous prime is 98764877681. The next prime is 98764877699. The reversal of 98764877693 is 39677846789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97970878009 + 793999684 = 313003^2 + 28178^2 .

It is a cyclic number.

It is not a de Polignac number, because 98764877693 - 2³² = 94469910397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98764877693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98764877699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49382438846 + 49382438847.

It is an arithmetic number, because the mean of its divisors is an integer number (49382438847).

Almost surely, 2^98764877693 is an apocalyptic number.

It is an amenable number.

98764877693 is a deficient number, since it is larger than the sum of its proper divisors (1).

98764877693 is an equidigital number, since it uses as much as digits as its factorization.

98764877693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768144384, while the sum is 74.

The spelling of 98764877693 in words is "ninety-eight billion, seven hundred sixty-four million, eight hundred seventy-seven thousand, six hundred ninety-three".