47531566751 has 2 divisors, whose sum is σ = 47531566752. Its totient is φ = 47531566750.

The previous prime is 47531566727. The next prime is 47531566799. The reversal of 47531566751 is 15766513574.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47531566751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47531566751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47531566651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23765783375 + 23765783376.

It is an arithmetic number, because the mean of its divisors is an integer number (23765783376).

Almost surely, 2^47531566751 is an apocalyptic number.

47531566751 is a deficient number, since it is larger than the sum of its proper divisors (1).

47531566751 is an equidigital number, since it uses as much as digits as its factorization.

47531566751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646000, while the sum is 50.

The spelling of 47531566751 in words is "forty-seven billion, five hundred thirty-one million, five hundred sixty-six thousand, seven hundred fifty-one".