73428200001 has 16 divisors (see below), whose sum is σ = 117150405120. Its totient is φ = 45186584400.

The previous prime is 73428199997. The next prime is 73428200023. The reversal of 73428200001 is 10000282437.

It is not a de Polignac number, because 73428200001 - 2² = 73428199997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (73428200401) 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, 104598225 + ... + 104598926.

It is an arithmetic number, because the mean of its divisors is an integer number (7321900320).

Almost surely, 2^73428200001 is an apocalyptic number.

It is an amenable number.

73428200001 is a deficient number, since it is larger than the sum of its proper divisors (43722205119).

73428200001 is a wasteful number, since it uses less digits than its factorization.

73428200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209197173 (or 209197167 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 73428200001 its reverse (10000282437), we get a palindrome (83428482438).

The spelling of 73428200001 in words is "seventy-three billion, four hundred twenty-eight million, two hundred thousand, one".