47467994789 has 4 divisors (see below), whose sum is σ = 48246158700. Its totient is φ = 46689830880.

The previous prime is 47467994773. The next prime is 47467994801. The reversal of 47467994789 is 98749976474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27376349764 + 20091645025 = 165458^2 + 141745^2 .

It is a cyclic number.

It is not a de Polignac number, because 47467994789 - 2⁴ = 47467994773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47467994759) 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, 389081864 + ... + 389081985.

It is an arithmetic number, because the mean of its divisors is an integer number (12061539675).

Almost surely, 2^47467994789 is an apocalyptic number.

It is an amenable number.

47467994789 is a deficient number, since it is larger than the sum of its proper divisors (778163911).

47467994789 is an equidigital number, since it uses as much as digits as its factorization.

47467994789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778163910.

The product of its digits is 768144384, while the sum is 74.

The spelling of 47467994789 in words is "forty-seven billion, four hundred sixty-seven million, nine hundred ninety-four thousand, seven hundred eighty-nine".