61763770093 has 2 divisors, whose sum is σ = 61763770094. Its totient is φ = 61763770092.

The previous prime is 61763770051. The next prime is 61763770151. The reversal of 61763770093 is 39007736716.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34894987204 + 26868782889 = 186802^2 + 163917^2 .

It is a cyclic number.

It is not a de Polignac number, because 61763770093 - 2¹³ = 61763761901 is a prime.

It is a super-2 number, since 2×61763770093² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61763770043) 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, 30881885046 + 30881885047.

It is an arithmetic number, because the mean of its divisors is an integer number (30881885047).

Almost surely, 2^61763770093 is an apocalyptic number.

It is an amenable number.

61763770093 is a deficient number, since it is larger than the sum of its proper divisors (1).

61763770093 is an equidigital number, since it uses as much as digits as its factorization.

61763770093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000188, while the sum is 49.

The spelling of 61763770093 in words is "sixty-one billion, seven hundred sixty-three million, seven hundred seventy thousand, ninety-three".