61471006573 has 2 divisors, whose sum is σ = 61471006574. Its totient is φ = 61471006572.

The previous prime is 61471006543. The next prime is 61471006627. The reversal of 61471006573 is 37560017416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51866418564 + 9604588009 = 227742^2 + 98003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61471006573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61471006543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30735503286 + 30735503287.

It is an arithmetic number, because the mean of its divisors is an integer number (30735503287).

Almost surely, 2^61471006573 is an apocalyptic number.

It is an amenable number.

61471006573 is a deficient number, since it is larger than the sum of its proper divisors (1).

61471006573 is an equidigital number, since it uses as much as digits as its factorization.

61471006573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 61471006573 in words is "sixty-one billion, four hundred seventy-one million, six thousand, five hundred seventy-three".