61268044501 has 2 divisors, whose sum is σ = 61268044502. Its totient is φ = 61268044500.

The previous prime is 61268044477. The next prime is 61268044517. The reversal of 61268044501 is 10544086216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43942640625 + 17325403876 = 209625^2 + 131626^2 .

It is a cyclic number.

It is not a de Polignac number, because 61268044501 - 2⁹ = 61268043989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61268044301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30634022250 + 30634022251.

It is an arithmetic number, because the mean of its divisors is an integer number (30634022251).

Almost surely, 2^61268044501 is an apocalyptic number.

It is an amenable number.

61268044501 is a deficient number, since it is larger than the sum of its proper divisors (1).

61268044501 is an equidigital number, since it uses as much as digits as its factorization.

61268044501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 61268044501 in words is "sixty-one billion, two hundred sixty-eight million, forty-four thousand, five hundred one".