475291497645 has 24 divisors (see below), whose sum is σ = 850414036992. Its totient is φ = 245311740000.

The previous prime is 475291497643. The next prime is 475291497719. The reversal of 475291497645 is 546794192574.

475291497645 is a `hidden beast` number, since 4 + 7 + 52 + 91 + 497 + 6 + 4 + 5 = 666.

It is not a de Polignac number, because 475291497645 - 2¹ = 475291497643 is a prime.

It is a super-3 number, since 3×475291497645³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475291497643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170353981 + ... + 170356770.

It is an arithmetic number, because the mean of its divisors is an integer number (35433918208).

Almost surely, 2^475291497645 is an apocalyptic number.

475291497645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

475291497645 is a deficient number, since it is larger than the sum of its proper divisors (375122539347).

475291497645 is a wasteful number, since it uses less digits than its factorization.

475291497645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340710793 (or 340710790 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 63.

The spelling of 475291497645 in words is "four hundred seventy-five billion, two hundred ninety-one million, four hundred ninety-seven thousand, six hundred forty-five".