63812842302420 has 72 divisors (see below), whose sum is σ = 193570986032424. Its totient is φ = 17016286353408.

The previous prime is 63812842302403. The next prime is 63812842302457. The reversal of 63812842302420 is 2420324821836.

63812842302420 is a `hidden beast` number, since 6 + 38 + 128 + 42 + 30 + 2 + 420 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1323153280656 + 62489689021764 = 1150284^2 + 7905042^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 1624732 + ... + 11413388.

It is an arithmetic number, because the mean of its divisors is an integer number (2688485917117).

Almost surely, 2^{63812842302420} is an apocalyptic number.

63812842302420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63812842302420 is an abundant number, since it is smaller than the sum of its proper divisors (129758143730004).

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

63812842302420 is a wasteful number, since it uses less digits than its factorization.

63812842302420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9824889 (or 9824884 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The spelling of 63812842302420 in words is "sixty-three trillion, eight hundred twelve billion, eight hundred forty-two million, three hundred two thousand, four hundred twenty".