99774185941 has 16 divisors (see below), whose sum is σ = 102859200000. Its totient is φ = 96749617536.

The previous prime is 99774185939. The next prime is 99774185957. The reversal of 99774185941 is 14958147799.

It is a happy number.

It is a 4-Lehmer number, since φ(99774185941) divides (99774185941-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 99774185941 - 2¹ = 99774185939 is a prime.

It is a deceptive number, since it divides R_99774185940.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99774185041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000000 + ... + 1095238.

It is an arithmetic number, because the mean of its divisors is an integer number (6428700000).

It is a Poulet number, since it divides 2^99774185940-1.

Almost surely, 2^99774185941 is an apocalyptic number.

It is an amenable number.

99774185941 is a deficient number, since it is larger than the sum of its proper divisors (3085014059).

99774185941 is a wasteful number, since it uses less digits than its factorization.

99774185941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95556.

The product of its digits is 22861440, while the sum is 64.

The spelling of 99774185941 in words is "ninety-nine billion, seven hundred seventy-four million, one hundred eighty-five thousand, nine hundred forty-one".