63266331431 has 16 divisors (see below), whose sum is σ = 66700677120. Its totient is φ = 59932625760.

The previous prime is 63266331391. The next prime is 63266331433. The reversal of 63266331431 is 13413366236.

It is a cyclic number.

It is not a de Polignac number, because 63266331431 - 2¹⁸ = 63266069287 is a prime.

It is a super-2 number, since 2×63266331431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63266331433) 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, 167666 + ... + 393248.

It is an arithmetic number, because the mean of its divisors is an integer number (4168792320).

Almost surely, 2^63266331431 is an apocalyptic number.

63266331431 is a deficient number, since it is larger than the sum of its proper divisors (3434345689).

63266331431 is a wasteful number, since it uses less digits than its factorization.

63266331431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225806.

The product of its digits is 139968, while the sum is 38.

Adding to 63266331431 its reverse (13413366236), we get a palindrome (76679697667).

The spelling of 63266331431 in words is "sixty-three billion, two hundred sixty-six million, three hundred thirty-one thousand, four hundred thirty-one".