63331389457 has 16 divisors (see below), whose sum is σ = 74896307200. Its totient is φ = 52404433920.

The previous prime is 63331389449. The next prime is 63331389461. The reversal of 63331389457 is 75498313336.

It is a cyclic number.

It is not a de Polignac number, because 63331389457 - 2³ = 63331389449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63331389257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268032 + ... + 445537.

It is an arithmetic number, because the mean of its divisors is an integer number (4681019200).

Almost surely, 2^63331389457 is an apocalyptic number.

It is an amenable number.

63331389457 is a deficient number, since it is larger than the sum of its proper divisors (11564917743).

63331389457 is a wasteful number, since it uses less digits than its factorization.

63331389457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714016.

The product of its digits is 4898880, while the sum is 52.

The spelling of 63331389457 in words is "sixty-three billion, three hundred thirty-one million, three hundred eighty-nine thousand, four hundred fifty-seven".