61750620079 has 2 divisors, whose sum is σ = 61750620080. Its totient is φ = 61750620078.

The previous prime is 61750620073. The next prime is 61750620143. The reversal of 61750620079 is 97002605716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61750620079 - 2⁵ = 61750620047 is a prime.

It is a super-4 number, since 4×61750620079⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61750620073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30875310039 + 30875310040.

It is an arithmetic number, because the mean of its divisors is an integer number (30875310040).

Almost surely, 2^61750620079 is an apocalyptic number.

61750620079 is a deficient number, since it is larger than the sum of its proper divisors (1).

61750620079 is an equidigital number, since it uses as much as digits as its factorization.

61750620079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 61750620079 in words is "sixty-one billion, seven hundred fifty million, six hundred twenty thousand, seventy-nine".