474744557781 has 48 divisors (see below), whose sum is σ = 743932565376. Its totient is φ = 290005930368.

The previous prime is 474744557731. The next prime is 474744557891. The reversal of 474744557781 is 187755447474.

474744557781 is a `hidden beast` number, since 4 + 7 + 4 + 7 + 4 + 4 + 557 + 78 + 1 = 666.

474744557781 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 474744557781 - 2⁶ = 474744557717 is a prime.

It is a super-2 number, since 2×474744557781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474744557731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8680935 + ... + 8735451.

It is an arithmetic number, because the mean of its divisors is an integer number (15498595112).

Almost surely, 2^474744557781 is an apocalyptic number.

It is an amenable number.

474744557781 is a deficient number, since it is larger than the sum of its proper divisors (269188007595).

474744557781 is a wasteful number, since it uses less digits than its factorization.

474744557781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55082 (or 55079 counting only the distinct ones).

The product of its digits is 122931200, while the sum is 63.

The spelling of 474744557781 in words is "four hundred seventy-four billion, seven hundred forty-four million, five hundred fifty-seven thousand, seven hundred eighty-one".