74254224109157 has 2 divisors, whose sum is σ = 74254224109158. Its totient is φ = 74254224109156.

The previous prime is 74254224109129. The next prime is 74254224109223. The reversal of 74254224109157 is 75190142245247.

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., 53306338652161 + 20947885456996 = 7301119^2 + 4576886^2 .

It is a cyclic number.

It is not a de Polignac number, because 74254224109157 - 2⁴⁴ = 56662038064741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74254224109099 and 74254224109108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74254224109057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37127112054578 + 37127112054579.

It is an arithmetic number, because the mean of its divisors is an integer number (37127112054579).

Almost surely, 2^{74254224109157} is an apocalyptic number.

It is an amenable number.

74254224109157 is a deficient number, since it is larger than the sum of its proper divisors (1).

74254224109157 is an equidigital number, since it uses as much as digits as its factorization.

74254224109157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 74254224109157 in words is "seventy-four trillion, two hundred fifty-four billion, two hundred twenty-four million, one hundred nine thousand, one hundred fifty-seven".