74528597137 has 2 divisors, whose sum is σ = 74528597138. Its totient is φ = 74528597136.

The previous prime is 74528597053. The next prime is 74528597153. The reversal of 74528597137 is 73179582547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47052551056 + 27476046081 = 216916^2 + 165759^2 .

It is a cyclic number.

It is not a de Polignac number, because 74528597137 - 2³¹ = 72381113489 is a prime.

It is not a weakly prime, because it can be changed into another prime (74528594137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37264298568 + 37264298569.

It is an arithmetic number, because the mean of its divisors is an integer number (37264298569).

Almost surely, 2^74528597137 is an apocalyptic number.

It is an amenable number.

74528597137 is a deficient number, since it is larger than the sum of its proper divisors (1).

74528597137 is an equidigital number, since it uses as much as digits as its factorization.

74528597137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14817600, while the sum is 58.

The spelling of 74528597137 in words is "seventy-four billion, five hundred twenty-eight million, five hundred ninety-seven thousand, one hundred thirty-seven".