47111115457 has 4 divisors (see below), whose sum is σ = 53841274816. Its totient is φ = 40380956100.

The previous prime is 47111115397. The next prime is 47111115503. The reversal of 47111115457 is 75451111174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75451111174 = 2 ⋅37725555587.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47111115457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47111112457) 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, 3365079669 + ... + 3365079682.

It is an arithmetic number, because the mean of its divisors is an integer number (13460318704).

Almost surely, 2^47111115457 is an apocalyptic number.

It is an amenable number.

47111115457 is a deficient number, since it is larger than the sum of its proper divisors (6730159359).

47111115457 is an equidigital number, since it uses as much as digits as its factorization.

47111115457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6730159358.

The product of its digits is 19600, while the sum is 37.

The spelling of 47111115457 in words is "forty-seven billion, one hundred eleven million, one hundred fifteen thousand, four hundred fifty-seven".