73405006628 has 24 divisors (see below), whose sum is σ = 130431216888. Its totient is φ = 36140587776.

The previous prime is 73405006613. The next prime is 73405006687. The reversal of 73405006628 is 82660050437.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 147088384 + 73257918244 = 12128^2 + 270662^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26051 + ... + 384042.

It is an arithmetic number, because the mean of its divisors is an integer number (5434634037).

Almost surely, 2^73405006628 is an apocalyptic number.

It is an amenable number.

73405006628 is a deficient number, since it is larger than the sum of its proper divisors (57026210260).

73405006628 is a wasteful number, since it uses less digits than its factorization.

73405006628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410783 (or 410781 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 73405006628 in words is "seventy-three billion, four hundred five million, six thousand, six hundred twenty-eight".