73774403117 has 2 divisors, whose sum is σ = 73774403118. Its totient is φ = 73774403116.

The previous prime is 73774403113. The next prime is 73774403147. The reversal of 73774403117 is 71130447737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73769819236 + 4583881 = 271606^2 + 2141^2 .

It is a cyclic number.

It is not a de Polignac number, because 73774403117 - 2² = 73774403113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73774403111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36887201558 + 36887201559.

It is an arithmetic number, because the mean of its divisors is an integer number (36887201559).

Almost surely, 2^73774403117 is an apocalyptic number.

It is an amenable number.

73774403117 is a deficient number, since it is larger than the sum of its proper divisors (1).

73774403117 is an equidigital number, since it uses as much as digits as its factorization.

73774403117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 44.

The spelling of 73774403117 in words is "seventy-three billion, seven hundred seventy-four million, four hundred three thousand, one hundred seventeen".