47857623811 has 4 divisors (see below), whose sum is σ = 47903247000. Its totient is φ = 47812000624.

The previous prime is 47857623809. The next prime is 47857623817. The reversal of 47857623811 is 11832675874.

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

It is a cyclic number.

It is not a de Polignac number, because 47857623811 - 2¹ = 47857623809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47857623817) 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, 22810021 + ... + 22812118.

It is an arithmetic number, because the mean of its divisors is an integer number (11975811750).

Almost surely, 2^47857623811 is an apocalyptic number.

47857623811 is a deficient number, since it is larger than the sum of its proper divisors (45623189).

47857623811 is a wasteful number, since it uses less digits than its factorization.

47857623811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45623188.

The product of its digits is 2257920, while the sum is 52.

The spelling of 47857623811 in words is "forty-seven billion, eight hundred fifty-seven million, six hundred twenty-three thousand, eight hundred eleven".