75197661073 has 2 divisors, whose sum is σ = 75197661074. Its totient is φ = 75197661072.

The previous prime is 75197661067. The next prime is 75197661101. The reversal of 75197661073 is 37016679157.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74285137809 + 912523264 = 272553^2 + 30208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75197661073 is a prime.

It is a super-2 number, since 2×75197661073² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75197661073.

It is not a weakly prime, because it can be changed into another prime (75197661373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37598830536 + 37598830537.

It is an arithmetic number, because the mean of its divisors is an integer number (37598830537).

Almost surely, 2^75197661073 is an apocalyptic number.

It is an amenable number.

75197661073 is a deficient number, since it is larger than the sum of its proper divisors (1).

75197661073 is an equidigital number, since it uses as much as digits as its factorization.

75197661073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1666980, while the sum is 52.

The spelling of 75197661073 in words is "seventy-five billion, one hundred ninety-seven million, six hundred sixty-one thousand, seventy-three".