99240292477 has 2 divisors, whose sum is σ = 99240292478. Its totient is φ = 99240292476.

The previous prime is 99240292451. The next prime is 99240292493. The reversal of 99240292477 is 77429204299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51686203716 + 47554088761 = 227346^2 + 218069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99240292477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99240292577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49620146238 + 49620146239.

It is an arithmetic number, because the mean of its divisors is an integer number (49620146239).

Almost surely, 2^99240292477 is an apocalyptic number.

It is an amenable number.

99240292477 is a deficient number, since it is larger than the sum of its proper divisors (1).

99240292477 is an equidigital number, since it uses as much as digits as its factorization.

99240292477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 99240292477 in words is "ninety-nine billion, two hundred forty million, two hundred ninety-two thousand, four hundred seventy-seven".