47509040023 has 4 divisors (see below), whose sum is σ = 47510751240. Its totient is φ = 47507328808.

The previous prime is 47509039999. The next prime is 47509040063. The reversal of 47509040023 is 32004090574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32004090574 = 2 ⋅16002045287.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47509040023 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 (47509040063) 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, 813265 + ... + 869722.

It is an arithmetic number, because the mean of its divisors is an integer number (11877687810).

Almost surely, 2^47509040023 is an apocalyptic number.

47509040023 is a deficient number, since it is larger than the sum of its proper divisors (1711217).

47509040023 is a wasteful number, since it uses less digits than its factorization.

47509040023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711216.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 47509040023 in words is "forty-seven billion, five hundred nine million, forty thousand, twenty-three".