63131498251 has 2 divisors, whose sum is σ = 63131498252. Its totient is φ = 63131498250.

The previous prime is 63131498237. The next prime is 63131498267. The reversal of 63131498251 is 15289413136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63131498251 - 2⁵ = 63131498219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63131498198 and 63131498207.

It is not a weakly prime, because it can be changed into another prime (63131490251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31565749125 + 31565749126.

It is an arithmetic number, because the mean of its divisors is an integer number (31565749126).

Almost surely, 2^63131498251 is an apocalyptic number.

63131498251 is a deficient number, since it is larger than the sum of its proper divisors (1).

63131498251 is an equidigital number, since it uses as much as digits as its factorization.

63131498251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The spelling of 63131498251 in words is "sixty-three billion, one hundred thirty-one million, four hundred ninety-eight thousand, two hundred fifty-one".