472771121656212 has 18 divisors (see below), whose sum is σ = 1195060335297738. Its totient is φ = 157590373885392.

The previous prime is 472771121656153. The next prime is 472771121656313. The reversal of 472771121656212 is 212656121177274.

It is a happy number.

472771121656212 is a `hidden beast` number, since 4 + 7 + 2 + 7 + 7 + 1 + 1 + 2 + 1 + 6 + 5 + 621 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 472387794746256 + 383326909956 = 21734484^2 + 619134^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6566265578523 + ... + 6566265578594.

Almost surely, 2^{472771121656212} is an apocalyptic number.

It is an amenable number.

472771121656212 is an abundant number, since it is smaller than the sum of its proper divisors (722289213641526).

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

472771121656212 is a wasteful number, since it uses less digits than its factorization.

472771121656212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13132531157127 (or 13132531157122 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 54.

The spelling of 472771121656212 in words is "four hundred seventy-two trillion, seven hundred seventy-one billion, one hundred twenty-one million, six hundred fifty-six thousand, two hundred twelve".