61750877473 has 2 divisors, whose sum is σ = 61750877474. Its totient is φ = 61750877472.

The previous prime is 61750877423. The next prime is 61750877491. The reversal of 61750877473 is 37477805716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54281078289 + 7469799184 = 232983^2 + 86428^2 .

It is a cyclic number.

It is not a de Polignac number, because 61750877473 - 2⁹ = 61750876961 is a prime.

It is not a weakly prime, because it can be changed into another prime (61750877423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30875438736 + 30875438737.

It is an arithmetic number, because the mean of its divisors is an integer number (30875438737).

Almost surely, 2^61750877473 is an apocalyptic number.

It is an amenable number.

61750877473 is a deficient number, since it is larger than the sum of its proper divisors (1).

61750877473 is an equidigital number, since it uses as much as digits as its factorization.

61750877473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6914880, while the sum is 55.

The spelling of 61750877473 in words is "sixty-one billion, seven hundred fifty million, eight hundred seventy-seven thousand, four hundred seventy-three".