74572158243337 has 2 divisors, whose sum is σ = 74572158243338. Its totient is φ = 74572158243336.

The previous prime is 74572158243277. The next prime is 74572158243421. The reversal of 74572158243337 is 73334285127547.

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., 52042430833936 + 22529727409401 = 7214044^2 + 4746549^2 .

It is a cyclic number.

It is not a de Polignac number, because 74572158243337 - 2¹¹ = 74572158241289 is a prime.

It is a super-2 number, since 2×74572158243337² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74572158241337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37286079121668 + 37286079121669.

It is an arithmetic number, because the mean of its divisors is an integer number (37286079121669).

Almost surely, 2^{74572158243337} is an apocalyptic number.

It is an amenable number.

74572158243337 is a deficient number, since it is larger than the sum of its proper divisors (1).

74572158243337 is an equidigital number, since it uses as much as digits as its factorization.

74572158243337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 118540800, while the sum is 61.

The spelling of 74572158243337 in words is "seventy-four trillion, five hundred seventy-two billion, one hundred fifty-eight million, two hundred forty-three thousand, three hundred thirty-seven".