99994895677 has 2 divisors, whose sum is σ = 99994895678. Its totient is φ = 99994895676.

The previous prime is 99994895633. The next prime is 99994895701. The reversal of 99994895677 is 77659849999.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97137565561 + 2857330116 = 311669^2 + 53454^2 .

It is a cyclic number.

It is not a de Polignac number, because 99994895677 - 2²⁷ = 99860677949 is a prime.

It is a super-2 number, since 2×99994895677² (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 99994895677.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997447838 + 49997447839.

It is an arithmetic number, because the mean of its divisors is an integer number (49997447839).

Almost surely, 2^99994895677 is an apocalyptic number.

It is an amenable number.

99994895677 is a deficient number, since it is larger than the sum of its proper divisors (1).

99994895677 is an equidigital number, since it uses as much as digits as its factorization.

99994895677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2777664960, while the sum is 82.

The spelling of 99994895677 in words is "ninety-nine billion, nine hundred ninety-four million, eight hundred ninety-five thousand, six hundred seventy-seven".