51846435947 has 2 divisors, whose sum is σ = 51846435948. Its totient is φ = 51846435946.

The previous prime is 51846435923. The next prime is 51846435983. The reversal of 51846435947 is 74953464815.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51846435947 - 2¹⁰ = 51846434923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51846435892 and 51846435901.

It is not a weakly prime, because it can be changed into another prime (51846435917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25923217973 + 25923217974.

It is an arithmetic number, because the mean of its divisors is an integer number (25923217974).

Almost surely, 2^51846435947 is an apocalyptic number.

51846435947 is a deficient number, since it is larger than the sum of its proper divisors (1).

51846435947 is an equidigital number, since it uses as much as digits as its factorization.

51846435947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 56.

The spelling of 51846435947 in words is "fifty-one billion, eight hundred forty-six million, four hundred thirty-five thousand, nine hundred forty-seven".