47788721051 has 2 divisors, whose sum is σ = 47788721052. Its totient is φ = 47788721050.

The previous prime is 47788721003. The next prime is 47788721081. The reversal of 47788721051 is 15012788774.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47788721051 is a prime.

It is not a weakly prime, because it can be changed into another prime (47788721081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23894360525 + 23894360526.

It is an arithmetic number, because the mean of its divisors is an integer number (23894360526).

Almost surely, 2^47788721051 is an apocalyptic number.

47788721051 is a deficient number, since it is larger than the sum of its proper divisors (1).

47788721051 is an equidigital number, since it uses as much as digits as its factorization.

47788721051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 878080, while the sum is 50.

The spelling of 47788721051 in words is "forty-seven billion, seven hundred eighty-eight million, seven hundred twenty-one thousand, fifty-one".