472772156873281 has 4 divisors (see below), whose sum is σ = 472784074236864. Its totient is φ = 472760239509700.

The previous prime is 472772156873227. The next prime is 472772156873309. The reversal of 472772156873281 is 182378651277274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 472772156873281 - 2¹⁵ = 472772156840513 is a prime.

It is a super-2 number, since 2×472772156873281² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 472772156873281.

It is not an unprimeable number, because it can be changed into a prime (472772156873881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5958622285 + ... + 5958701626.

It is an arithmetic number, because the mean of its divisors is an integer number (118196018559216).

Almost surely, 2^{472772156873281} is an apocalyptic number.

It is an amenable number.

472772156873281 is a deficient number, since it is larger than the sum of its proper divisors (11917363583).

472772156873281 is a wasteful number, since it uses less digits than its factorization.

472772156873281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11917363582.

The product of its digits is 442552320, while the sum is 70.

The spelling of 472772156873281 in words is "four hundred seventy-two trillion, seven hundred seventy-two billion, one hundred fifty-six million, eight hundred seventy-three thousand, two hundred eighty-one".