47931348351 has 4 divisors (see below), whose sum is σ = 63908464472. Its totient is φ = 31954232232.

The previous prime is 47931348313. The next prime is 47931348371. The reversal of 47931348351 is 15384313974.

It is a happy number.

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

It is not a de Polignac number, because 47931348351 - 2⁹ = 47931347839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47931348351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47931348371) 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, 7988558056 + ... + 7988558061.

It is an arithmetic number, because the mean of its divisors is an integer number (15977116118).

Almost surely, 2^47931348351 is an apocalyptic number.

47931348351 is a deficient number, since it is larger than the sum of its proper divisors (15977116121).

47931348351 is a wasteful number, since it uses less digits than its factorization.

47931348351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15977116120.

The product of its digits is 1088640, while the sum is 48.

The spelling of 47931348351 in words is "forty-seven billion, nine hundred thirty-one million, three hundred forty-eight thousand, three hundred fifty-one".