72446275405 has 16 divisors (see below), whose sum is σ = 101468828160. Its totient is φ = 48620477952.

The previous prime is 72446275381. The next prime is 72446275409. The reversal of 72446275405 is 50457264427.

It is a cyclic number.

It is not a de Polignac number, because 72446275405 - 2⁵ = 72446275373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72446275409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22018500 + ... + 22021789.

It is an arithmetic number, because the mean of its divisors is an integer number (6341801760).

Almost surely, 2^72446275405 is an apocalyptic number.

It is an amenable number.

72446275405 is a deficient number, since it is larger than the sum of its proper divisors (29022552755).

72446275405 is a wasteful number, since it uses less digits than its factorization.

72446275405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44040348.

The product of its (nonzero) digits is 1881600, while the sum is 46.

The spelling of 72446275405 in words is "seventy-two billion, four hundred forty-six million, two hundred seventy-five thousand, four hundred five".