63852741481 has 3 divisors (see below), whose sum is σ = 63852994173. Its totient is φ = 63852488790.

The previous prime is 63852741467. The next prime is 63852741503. The reversal of 63852741481 is 18414725836.

The square root of 63852741481 is 252691.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 63852741481 - 2¹³ = 63852733289 is a prime.

It is a super-2 number, since 2×63852741481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63852741431) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 126346 + ... + 379036.

It is an arithmetic number, because the mean of its divisors is an integer number (21284331391).

Almost surely, 2^63852741481 is an apocalyptic number.

63852741481 is the 252691-st square number.

63852741481 is the 126346-th centered octagonal number.

It is an amenable number.

63852741481 is a deficient number, since it is larger than the sum of its proper divisors (252692).

63852741481 is an frugal number, since it uses more digits than its factorization.

63852741481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505382 (or 252691 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

Multiplying 63852741481 by its sum of digits (49), we get a square (3128784332569 = 1768837²).

The spelling of 63852741481 in words is "sixty-three billion, eight hundred fifty-two million, seven hundred forty-one thousand, four hundred eighty-one".