99777374043 has 8 divisors (see below), whose sum is σ = 134213813328. Its totient is φ = 65929592064.

The previous prime is 99777374033. The next prime is 99777374057. The reversal of 99777374043 is 34047377799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99777374043 - 2¹⁶ = 99777308507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99777374033) 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 7 ways as a sum of consecutive naturals, for example, 147163930 + ... + 147164607.

It is an arithmetic number, because the mean of its divisors is an integer number (16776726666).

Almost surely, 2^99777374043 is an apocalyptic number.

99777374043 is a deficient number, since it is larger than the sum of its proper divisors (34436439285).

99777374043 is a wasteful number, since it uses less digits than its factorization.

99777374043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294328653.

The product of its (nonzero) digits is 28005264, while the sum is 60.

The spelling of 99777374043 in words is "ninety-nine billion, seven hundred seventy-seven million, three hundred seventy-four thousand, forty-three".