99442778410 has 12 divisors (see below), whose sum is σ = 178998796134. Its totient is φ = 39776712480.

The previous prime is 99442778339. The next prime is 99442778411. The reversal of 99442778410 is 1487724499.

It can be written as a sum of positive squares in 3 ways, for example, as 70600209849 + 28842568561 = 265707^2 + 169831^2 .

It is not an unprimeable number, because it can be changed into a prime (99442778411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 947350 + ... + 1047070.

Almost surely, 2^99442778410 is an apocalyptic number.

99442778410 is a deficient number, since it is larger than the sum of its proper divisors (79556017724).

99442778410 is an frugal number, since it uses more digits than its factorization.

99442778410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199449 (or 99728 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 99442778410 in words is "ninety-nine billion, four hundred forty-two million, seven hundred seventy-eight thousand, four hundred ten".