74226278117 has 2 divisors, whose sum is σ = 74226278118. Its totient is φ = 74226278116.

The previous prime is 74226278023. The next prime is 74226278129. The reversal of 74226278117 is 71187262247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63504504001 + 10721774116 = 252001^2 + 103546^2 .

It is a cyclic number.

It is not a de Polignac number, because 74226278117 - 2²² = 74222083813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74226278177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37113139058 + 37113139059.

It is an arithmetic number, because the mean of its divisors is an integer number (37113139059).

Almost surely, 2^74226278117 is an apocalyptic number.

It is an amenable number.

74226278117 is a deficient number, since it is larger than the sum of its proper divisors (1).

74226278117 is an equidigital number, since it uses as much as digits as its factorization.

74226278117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 526848, while the sum is 47.

The spelling of 74226278117 in words is "seventy-four billion, two hundred twenty-six million, two hundred seventy-eight thousand, one hundred seventeen".