474519091181 has 2 divisors, whose sum is σ = 474519091182. Its totient is φ = 474519091180.

The previous prime is 474519091099. The next prime is 474519091201. The reversal of 474519091181 is 181190915474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302577004900 + 171942086281 = 550070^2 + 414659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474519091181 is a prime.

It is a super-2 number, since 2×474519091181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474519099181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237259545590 + 237259545591.

It is an arithmetic number, because the mean of its divisors is an integer number (237259545591).

Almost surely, 2^474519091181 is an apocalyptic number.

It is an amenable number.

474519091181 is a deficient number, since it is larger than the sum of its proper divisors (1).

474519091181 is an equidigital number, since it uses as much as digits as its factorization.

474519091181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 50.

The spelling of 474519091181 in words is "four hundred seventy-four billion, five hundred nineteen million, ninety-one thousand, one hundred eighty-one".