74681860597 has 2 divisors, whose sum is σ = 74681860598. Its totient is φ = 74681860596.

The previous prime is 74681860571. The next prime is 74681860607. The reversal of 74681860597 is 79506818647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73357555716 + 1324304881 = 270846^2 + 36391^2 .

It is an emirp because it is prime and its reverse (79506818647) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74681860597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74681860507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37340930298 + 37340930299.

It is an arithmetic number, because the mean of its divisors is an integer number (37340930299).

Almost surely, 2^74681860597 is an apocalyptic number.

It is an amenable number.

74681860597 is a deficient number, since it is larger than the sum of its proper divisors (1).

74681860597 is an equidigital number, since it uses as much as digits as its factorization.

74681860597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 74681860597 in words is "seventy-four billion, six hundred eighty-one million, eight hundred sixty thousand, five hundred ninety-seven".