63440053246401 has 16 divisors (see below), whose sum is σ = 91124257706496. Its totient is φ = 39026812231296.

The previous prime is 63440053246369. The next prime is 63440053246429. The reversal of 63440053246401 is 10464235004436.

It is not a de Polignac number, because 63440053246401 - 2⁵ = 63440053246369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63440053246441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275311185 + ... + 275541518.

It is an arithmetic number, because the mean of its divisors is an integer number (5695266106656).

Almost surely, 2^{63440053246401} is an apocalyptic number.

It is an amenable number.

63440053246401 is a deficient number, since it is larger than the sum of its proper divisors (27684204460095).

63440053246401 is a wasteful number, since it uses less digits than its factorization.

63440053246401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550855672.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 63440053246401 in words is "sixty-three trillion, four hundred forty billion, fifty-three million, two hundred forty-six thousand, four hundred one".