99240292451 has 2 divisors, whose sum is σ = 99240292452. Its totient is φ = 99240292450.

The previous prime is 99240292433. The next prime is 99240292477. The reversal of 99240292451 is 15429204299.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99240292451 - 2³⁰ = 98166550627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99240292396 and 99240292405.

It is not a weakly prime, because it can be changed into another prime (99240292051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49620146225 + 49620146226.

It is an arithmetic number, because the mean of its divisors is an integer number (49620146226).

Almost surely, 2^99240292451 is an apocalyptic number.

99240292451 is a deficient number, since it is larger than the sum of its proper divisors (1).

99240292451 is an equidigital number, since it uses as much as digits as its factorization.

99240292451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 99240292451 in words is "ninety-nine billion, two hundred forty million, two hundred ninety-two thousand, four hundred fifty-one".