99774490378630 has 64 divisors (see below), whose sum is σ = 187918912925568. Its totient is φ = 38069411973120.

The previous prime is 99774490378601. The next prime is 99774490378631. The reversal of 99774490378630 is 3687309447799.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99774490378631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1428969120 + ... + 1429038940.

It is an arithmetic number, because the mean of its divisors is an integer number (2936233014462).

Almost surely, 2^{99774490378630} is an apocalyptic number.

99774490378630 is a deficient number, since it is larger than the sum of its proper divisors (88144422546938).

99774490378630 is a wasteful number, since it uses less digits than its factorization.

99774490378630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86881.

The product of its (nonzero) digits is 1728324864, while the sum is 76.

The spelling of 99774490378630 in words is "ninety-nine trillion, seven hundred seventy-four billion, four hundred ninety million, three hundred seventy-eight thousand, six hundred thirty".