99946829557 has 2 divisors, whose sum is σ = 99946829558. Its totient is φ = 99946829556.

The previous prime is 99946829467. The next prime is 99946829579. The reversal of 99946829557 is 75592864999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61222099761 + 38724729796 = 247431^2 + 196786^2 .

It is a cyclic number.

It is not a de Polignac number, because 99946829557 - 2²³ = 99938440949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99946829557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99946829597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49973414778 + 49973414779.

It is an arithmetic number, because the mean of its divisors is an integer number (49973414779).

Almost surely, 2^99946829557 is an apocalyptic number.

It is an amenable number.

99946829557 is a deficient number, since it is larger than the sum of its proper divisors (1).

99946829557 is an equidigital number, since it uses as much as digits as its factorization.

99946829557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 440899200, while the sum is 73.

The spelling of 99946829557 in words is "ninety-nine billion, nine hundred forty-six million, eight hundred twenty-nine thousand, five hundred fifty-seven".