62661352409 has 2 divisors, whose sum is σ = 62661352410. Its totient is φ = 62661352408.

The previous prime is 62661352367. The next prime is 62661352433. The reversal of 62661352409 is 90425316626.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46640881225 + 16020471184 = 215965^2 + 126572^2 .

It is a cyclic number.

It is not a de Polignac number, because 62661352409 - 2⁸ = 62661352153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 62661352409.

It is not a weakly prime, because it can be changed into another prime (62661352709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31330676204 + 31330676205.

It is an arithmetic number, because the mean of its divisors is an integer number (31330676205).

Almost surely, 2^62661352409 is an apocalyptic number.

It is an amenable number.

62661352409 is a deficient number, since it is larger than the sum of its proper divisors (1).

62661352409 is an equidigital number, since it uses as much as digits as its factorization.

62661352409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 62661352409 in words is "sixty-two billion, six hundred sixty-one million, three hundred fifty-two thousand, four hundred nine".