63252777894 has 32 divisors (see below), whose sum is σ = 132133883904. Its totient is φ = 20147983680.

The previous prime is 63252777877. The next prime is 63252777901. The reversal of 63252777894 is 49877725236.

It is a happy number.

It is a super-2 number, since 2×63252777894² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79302 + ... + 364409.

It is an arithmetic number, because the mean of its divisors is an integer number (4129183872).

Almost surely, 2^63252777894 is an apocalyptic number.

63252777894 is an abundant number, since it is smaller than the sum of its proper divisors (68881106010).

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

63252777894 is a wasteful number, since it uses less digits than its factorization.

63252777894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444772.

The product of its digits is 35562240, while the sum is 60.

The spelling of 63252777894 in words is "sixty-three billion, two hundred fifty-two million, seven hundred seventy-seven thousand, eight hundred ninety-four".