63572744172042 has 160 divisors (see below), whose sum is σ = 163058491183104. Its totient is φ = 18134829504000.

The previous prime is 63572744172001. The next prime is 63572744172043. The reversal of 63572744172042 is 24027144727536.

63572744172042 is a `hidden beast` number, since 6 + 3 + 572 + 7 + 4 + 4 + 1 + 7 + 20 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 63572744172042.

It is not an unprimeable number, because it can be changed into a prime (63572744172043) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1896488242 + ... + 1896521762.

Almost surely, 2^{63572744172042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63572744172042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81529245591552).

63572744172042 is an abundant number, since it is smaller than the sum of its proper divisors (99485747011062).

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

63572744172042 is a wasteful number, since it uses less digits than its factorization.

63572744172042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36146 (or 36137 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 54.

Adding to 63572744172042 its reverse (24027144727536), we get a palindrome (87599888899578).

The spelling of 63572744172042 in words is "sixty-three trillion, five hundred seventy-two billion, seven hundred forty-four million, one hundred seventy-two thousand, forty-two".