47156312551 has 4 divisors (see below), whose sum is σ = 47208076704. Its totient is φ = 47104548400.

The previous prime is 47156312549. The next prime is 47156312569. The reversal of 47156312551 is 15521365174.

It is a happy number.

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 47156312551 - 2¹ = 47156312549 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47156312851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25880710 + ... + 25882531.

It is an arithmetic number, because the mean of its divisors is an integer number (11802019176).

Almost surely, 2^47156312551 is an apocalyptic number.

47156312551 is a deficient number, since it is larger than the sum of its proper divisors (51764153).

47156312551 is an equidigital number, since it uses as much as digits as its factorization.

47156312551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51764152.

The product of its digits is 126000, while the sum is 40.

The spelling of 47156312551 in words is "forty-seven billion, one hundred fifty-six million, three hundred twelve thousand, five hundred fifty-one".