61474076819 has 2 divisors, whose sum is σ = 61474076820. Its totient is φ = 61474076818.

The previous prime is 61474076803. The next prime is 61474076821. The reversal of 61474076819 is 91867047416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61474076819 - 2⁴ = 61474076803 is a prime.

It is a super-2 number, since 2×61474076819² (a number of 22 digits) contains 22 as substring.

Together with 61474076821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61474076849) 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, 30737038409 + 30737038410.

It is an arithmetic number, because the mean of its divisors is an integer number (30737038410).

Almost surely, 2^61474076819 is an apocalyptic number.

61474076819 is a deficient number, since it is larger than the sum of its proper divisors (1).

61474076819 is an equidigital number, since it uses as much as digits as its factorization.

61474076819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 61474076819 in words is "sixty-one billion, four hundred seventy-four million, seventy-six thousand, eight hundred nineteen".