634286483881 has 2 divisors, whose sum is σ = 634286483882. Its totient is φ = 634286483880.

The previous prime is 634286483867. The next prime is 634286483917. The reversal of 634286483881 is 188384682436.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 586886227225 + 47400256656 = 766085^2 + 217716^2 .

It is a cyclic number.

It is not a de Polignac number, because 634286483881 - 2⁵ = 634286483849 is a prime.

It is a super-2 number, since 2×634286483881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (634286483861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317143241940 + 317143241941.

It is an arithmetic number, because the mean of its divisors is an integer number (317143241941).

Almost surely, 2^634286483881 is an apocalyptic number.

It is an amenable number.

634286483881 is a deficient number, since it is larger than the sum of its proper divisors (1).

634286483881 is an equidigital number, since it uses as much as digits as its factorization.

634286483881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42467328, while the sum is 61.

The spelling of 634286483881 in words is "six hundred thirty-four billion, two hundred eighty-six million, four hundred eighty-three thousand, eight hundred eighty-one".