472146009493 has 4 divisors (see below), whose sum is σ = 472716924480. Its totient is φ = 471575094508.

The previous prime is 472146009481. The next prime is 472146009499. The reversal of 472146009493 is 394900641274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 472146009493 - 2²¹ = 472143912341 is a prime.

It is a super-2 number, since 2×472146009493² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472146009499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285456253 + ... + 285457906.

It is an arithmetic number, because the mean of its divisors is an integer number (118179231120).

Almost surely, 2^472146009493 is an apocalyptic number.

It is an amenable number.

472146009493 is a deficient number, since it is larger than the sum of its proper divisors (570914987).

472146009493 is an equidigital number, since it uses as much as digits as its factorization.

472146009493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570914986.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 472146009493 in words is "four hundred seventy-two billion, one hundred forty-six million, nine thousand, four hundred ninety-three".