73472887506 has 16 divisors (see below), whose sum is σ = 146951884800. Its totient is φ = 24489944208.

The previous prime is 73472887457. The next prime is 73472887531. The reversal of 73472887506 is 60578827437.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90066 + ... + 393773.

It is an arithmetic number, because the mean of its divisors is an integer number (9184492800).

Almost surely, 2^73472887506 is an apocalyptic number.

73472887506 is an abundant number, since it is smaller than the sum of its proper divisors (73478997294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73472887506 is a wasteful number, since it uses less digits than its factorization.

73472887506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509153.

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 73472887506 in words is "seventy-three billion, four hundred seventy-two million, eight hundred eighty-seven thousand, five hundred six".