47645533451772 has 72 divisors (see below), whose sum is σ = 120714575436000. Its totient is φ = 15845291324928.

The previous prime is 47645533451749. The next prime is 47645533451809. The reversal of 47645533451772 is 27715433554674.

It is a happy number.

47645533451772 is a `hidden beast` number, since 4 + 7 + 6 + 4 + 553 + 3 + 4 + 5 + 1 + 7 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148714129 + ... + 149034167.

It is an arithmetic number, because the mean of its divisors is an integer number (1676591325500).

Almost surely, 2^{47645533451772} is an apocalyptic number.

It is an amenable number.

47645533451772 is an abundant number, since it is smaller than the sum of its proper divisors (73069041984228).

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

47645533451772 is a wasteful number, since it uses less digits than its factorization.

47645533451772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329555 (or 329550 counting only the distinct ones).

The product of its digits is 296352000, while the sum is 63.

The spelling of 47645533451772 in words is "forty-seven trillion, six hundred forty-five billion, five hundred thirty-three million, four hundred fifty-one thousand, seven hundred seventy-two".