74009763181 has 2 divisors, whose sum is σ = 74009763182. Its totient is φ = 74009763180.

The previous prime is 74009763089. The next prime is 74009763187. The reversal of 74009763181 is 18136790047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52597294281 + 21412468900 = 229341^2 + 146330^2 .

It is a cyclic number.

It is not a de Polignac number, because 74009763181 - 2¹³ = 74009754989 is a prime.

It is a super-2 number, since 2×74009763181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74009763187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37004881590 + 37004881591.

It is an arithmetic number, because the mean of its divisors is an integer number (37004881591).

Almost surely, 2^74009763181 is an apocalyptic number.

It is an amenable number.

74009763181 is a deficient number, since it is larger than the sum of its proper divisors (1).

74009763181 is an equidigital number, since it uses as much as digits as its factorization.

74009763181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

It can be divided in two parts, 740097 and 63181, that added together give a triangular number (803278 = T₁₂₆₇).

The spelling of 74009763181 in words is "seventy-four billion, nine million, seven hundred sixty-three thousand, one hundred eighty-one".