73428199999 has 16 divisors (see below), whose sum is σ = 92386736640. Its totient is φ = 56691848160.

The previous prime is 73428199997. The next prime is 73428200023. The reversal of 73428199999 is 99999182437.

It is a cyclic number.

It is not a de Polignac number, because 73428199999 - 2¹ = 73428199997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73428199991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4365979 + ... + 4382764.

It is an arithmetic number, because the mean of its divisors is an integer number (5774171040).

Almost surely, 2^73428199999 is an apocalyptic number.

73428199999 is a deficient number, since it is larger than the sum of its proper divisors (18958536641).

73428199999 is a wasteful number, since it uses less digits than its factorization.

73428199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748870.

The product of its digits is 79361856, while the sum is 70.

The spelling of 73428199999 in words is "seventy-three billion, four hundred twenty-eight million, one hundred ninety-nine thousand, nine hundred ninety-nine".