73776490999 has 16 divisors (see below), whose sum is σ = 77534121600. Its totient is φ = 70104013056.

The previous prime is 73776490981. The next prime is 73776491077. The reversal of 73776490999 is 99909467737.

It is a cyclic number.

It is not a de Polignac number, because 73776490999 - 2⁷ = 73776490871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73776490499) 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 15 ways as a sum of consecutive naturals, for example, 942537 + ... + 1017805.

It is an arithmetic number, because the mean of its divisors is an integer number (4845882600).

Almost surely, 2^73776490999 is an apocalyptic number.

73776490999 is a deficient number, since it is larger than the sum of its proper divisors (3757630601).

73776490999 is a wasteful number, since it uses less digits than its factorization.

73776490999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75834.

The product of its (nonzero) digits is 162030456, while the sum is 70.

The spelling of 73776490999 in words is "seventy-three billion, seven hundred seventy-six million, four hundred ninety thousand, nine hundred ninety-nine".