63125405440431 has 16 divisors (see below), whose sum is σ = 85616786246400. Its totient is φ = 41359197733568.

The previous prime is 63125405440387. The next prime is 63125405440483. The reversal of 63125405440431 is 13404450452136.

It is a cyclic number.

It is not a de Polignac number, because 63125405440431 - 2⁷ = 63125405440303 is a prime.

It is a super-2 number, since 2×63125405440431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63125405440831) 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, 47290206 + ... + 48606731.

It is an arithmetic number, because the mean of its divisors is an integer number (5351049140400).

Almost surely, 2^{63125405440431} is an apocalyptic number.

63125405440431 is a deficient number, since it is larger than the sum of its proper divisors (22491380805969).

63125405440431 is a wasteful number, since it uses less digits than its factorization.

63125405440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95900718.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 63125405440431 its reverse (13404450452136), we get a palindrome (76529855892567).

The spelling of 63125405440431 in words is "sixty-three trillion, one hundred twenty-five billion, four hundred five million, four hundred forty thousand, four hundred thirty-one".