61479398423 has 2 divisors, whose sum is σ = 61479398424. Its totient is φ = 61479398422.

The previous prime is 61479398401. The next prime is 61479398483. The reversal of 61479398423 is 32489397416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61479398423 - 2³² = 57184431127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61479398483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30739699211 + 30739699212.

It is an arithmetic number, because the mean of its divisors is an integer number (30739699212).

Almost surely, 2^61479398423 is an apocalyptic number.

61479398423 is a deficient number, since it is larger than the sum of its proper divisors (1).

61479398423 is an equidigital number, since it uses as much as digits as its factorization.

61479398423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 56.

The spelling of 61479398423 in words is "sixty-one billion, four hundred seventy-nine million, three hundred ninety-eight thousand, four hundred twenty-three".