64480988461 has 2 divisors, whose sum is σ = 64480988462. Its totient is φ = 64480988460.

The previous prime is 64480988449. The next prime is 64480988531. The reversal of 64480988461 is 16488908446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47683273225 + 16797715236 = 218365^2 + 129606^2 .

It is a cyclic number.

It is not a de Polignac number, because 64480988461 - 2¹³ = 64480980269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64480988396 and 64480988405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64480988441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32240494230 + 32240494231.

It is an arithmetic number, because the mean of its divisors is an integer number (32240494231).

Almost surely, 2^64480988461 is an apocalyptic number.

It is an amenable number.

64480988461 is a deficient number, since it is larger than the sum of its proper divisors (1).

64480988461 is an equidigital number, since it uses as much as digits as its factorization.

64480988461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10616832, while the sum is 58.

The spelling of 64480988461 in words is "sixty-four billion, four hundred eighty million, nine hundred eighty-eight thousand, four hundred sixty-one".