61147586306407 has 2 divisors, whose sum is σ = 61147586306408. Its totient is φ = 61147586306406.

The previous prime is 61147586306383. The next prime is 61147586306473. The reversal of 61147586306407 is 70460368574116.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61147586306407 - 2³¹ = 61145438822759 is a prime.

It is a super-2 number, since 2×61147586306407² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61147586306497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30573793153203 + 30573793153204.

It is an arithmetic number, because the mean of its divisors is an integer number (30573793153204).

Almost surely, 2^{61147586306407} is an apocalyptic number.

61147586306407 is a deficient number, since it is larger than the sum of its proper divisors (1).

61147586306407 is an equidigital number, since it uses as much as digits as its factorization.

61147586306407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 61147586306407 in words is "sixty-one trillion, one hundred forty-seven billion, five hundred eighty-six million, three hundred six thousand, four hundred seven".