99477191111 has 2 divisors, whose sum is σ = 99477191112. Its totient is φ = 99477191110.

The previous prime is 99477191081. The next prime is 99477191137. The reversal of 99477191111 is 11119177499.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99477191111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99477191111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99477191311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49738595555 + 49738595556.

It is an arithmetic number, because the mean of its divisors is an integer number (49738595556).

Almost surely, 2^99477191111 is an apocalyptic number.

99477191111 is a deficient number, since it is larger than the sum of its proper divisors (1).

99477191111 is an equidigital number, since it uses as much as digits as its factorization.

99477191111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 50.

The spelling of 99477191111 in words is "ninety-nine billion, four hundred seventy-seven million, one hundred ninety-one thousand, one hundred eleven".