475527131730 has 160 divisors (see below), whose sum is σ = 1464287172480. Its totient is φ = 108469912320.

The previous prime is 475527131719. The next prime is 475527131741. The reversal of 475527131730 is 37131725574.

475527131730 is a `hidden beast` number, since 4 + 75 + 527 + 13 + 17 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (475527131719) and next prime (475527131741).

It is a super-2 number, since 2×475527131730² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2698566 + ... + 2869374.

It is an arithmetic number, because the mean of its divisors is an integer number (9151794828).

Almost surely, 2^475527131730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475527131730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732143586240).

475527131730 is an abundant number, since it is smaller than the sum of its proper divisors (988760040750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

475527131730 is a wasteful number, since it uses less digits than its factorization.

475527131730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171326 (or 171317 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 475527131730 in words is "four hundred seventy-five billion, five hundred twenty-seven million, one hundred thirty-one thousand, seven hundred thirty".