63315402641 has 8 divisors (see below), whose sum is σ = 64006400640. Its totient is φ = 62625871872.

The previous prime is 63315402637. The next prime is 63315402649. The reversal of 63315402641 is 14620451336.

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 63315402641 - 2² = 63315402637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63315402649) 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, 279920 + ... + 452753.

It is an arithmetic number, because the mean of its divisors is an integer number (8000800080).

Almost surely, 2^63315402641 is an apocalyptic number.

It is an amenable number.

63315402641 is a deficient number, since it is larger than the sum of its proper divisors (690997999).

63315402641 is a wasteful number, since it uses less digits than its factorization.

63315402641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733615.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 63315402641 its reverse (14620451336), we get a palindrome (77935853977).

The spelling of 63315402641 in words is "sixty-three billion, three hundred fifteen million, four hundred two thousand, six hundred forty-one".