147875481817 has 4 divisors (see below), whose sum is σ = 169000550656. Its totient is φ = 126750412980.

The previous prime is 147875481811. The next prime is 147875481821. The reversal of 147875481817 is 718184578741.

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 147875481817 - 2¹¹ = 147875479769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147875481811) 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, 10562534409 + ... + 10562534422.

It is an arithmetic number, because the mean of its divisors is an integer number (42250137664).

Almost surely, 2^147875481817 is an apocalyptic number.

It is an amenable number.

147875481817 is a deficient number, since it is larger than the sum of its proper divisors (21125068839).

147875481817 is an equidigital number, since it uses as much as digits as its factorization.

147875481817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125068838.

The product of its digits is 14049280, while the sum is 61.

The spelling of 147875481817 in words is "one hundred forty-seven billion, eight hundred seventy-five million, four hundred eighty-one thousand, eight hundred seventeen".