474700009981 has 2 divisors, whose sum is σ = 474700009982. Its totient is φ = 474700009980.

The previous prime is 474700009921. The next prime is 474700010021. The reversal of 474700009981 is 189900007474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470259920025 + 4440089956 = 685755^2 + 66634^2 .

It is a cyclic number.

It is not a de Polignac number, because 474700009981 - 2²³ = 474691621373 is a prime.

It is a super-2 number, since 2×474700009981² (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 (474700009921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237350004990 + 237350004991.

It is an arithmetic number, because the mean of its divisors is an integer number (237350004991).

Almost surely, 2^474700009981 is an apocalyptic number.

It is an amenable number.

474700009981 is a deficient number, since it is larger than the sum of its proper divisors (1).

474700009981 is an equidigital number, since it uses as much as digits as its factorization.

474700009981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 474700009981 in words is "four hundred seventy-four billion, seven hundred million, nine thousand, nine hundred eighty-one".