63333638742 has 48 divisors (see below), whose sum is σ = 142992336816. Its totient is φ = 18673300800.

The previous prime is 63333638699. The next prime is 63333638743. The reversal of 63333638742 is 24783633336.

It is a super-2 number, since 2×63333638742² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63333638691 and 63333638700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63333638743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1152009 + ... + 1205732.

It is an arithmetic number, because the mean of its divisors is an integer number (2979007017).

Almost surely, 2^63333638742 is an apocalyptic number.

63333638742 is an abundant number, since it is smaller than the sum of its proper divisors (79658698074).

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

63333638742 is a wasteful number, since it uses less digits than its factorization.

63333638742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357805 (or 2357794 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 48.

The spelling of 63333638742 in words is "sixty-three billion, three hundred thirty-three million, six hundred thirty-eight thousand, seven hundred forty-two".