47315901431873 has 4 divisors (see below), whose sum is σ = 47315962529748. Its totient is φ = 47315840334000.

The previous prime is 47315901431861. The next prime is 47315901431879. The reversal of 47315901431873 is 37813410951374.

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 34142144824384 + 13173756607489 = 5843128^2 + 3629567^2 .

It is a cyclic number.

It is not a de Polignac number, because 47315901431873 - 2¹⁸ = 47315901169729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47315901431879) 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, 29372186 + ... + 30941187.

It is an arithmetic number, because the mean of its divisors is an integer number (11828990632437).

Almost surely, 2^{47315901431873} is an apocalyptic number.

It is an amenable number.

47315901431873 is a deficient number, since it is larger than the sum of its proper divisors (61097875).

47315901431873 is an equidigital number, since it uses as much as digits as its factorization.

47315901431873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61097874.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 47315901431873 in words is "forty-seven trillion, three hundred fifteen billion, nine hundred one million, four hundred thirty-one thousand, eight hundred seventy-three".