63351415021 has 8 divisors (see below), whose sum is σ = 64262208384. Its totient is φ = 62441136240.

The previous prime is 63351414977. The next prime is 63351415051. The reversal of 63351415021 is 12051415336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63351415021 - 2¹³ = 63351406829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63351415051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122856 + ... + 376558.

It is an arithmetic number, because the mean of its divisors is an integer number (8032776048).

Almost surely, 2^63351415021 is an apocalyptic number.

It is an amenable number.

63351415021 is a deficient number, since it is larger than the sum of its proper divisors (910793363).

63351415021 is a wasteful number, since it uses less digits than its factorization.

63351415021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257291.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 63351415021 in words is "sixty-three billion, three hundred fifty-one million, four hundred fifteen thousand, twenty-one".