632720871847 has 2 divisors, whose sum is σ = 632720871848. Its totient is φ = 632720871846.

The previous prime is 632720871833. The next prime is 632720871851. The reversal of 632720871847 is 748178027236.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632720871847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (632720871857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316360435923 + 316360435924.

It is an arithmetic number, because the mean of its divisors is an integer number (316360435924).

Almost surely, 2^632720871847 is an apocalyptic number.

632720871847 is a deficient number, since it is larger than the sum of its proper divisors (1).

632720871847 is an equidigital number, since it uses as much as digits as its factorization.

632720871847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6322176, while the sum is 55.

The spelling of 632720871847 in words is "six hundred thirty-two billion, seven hundred twenty million, eight hundred seventy-one thousand, eight hundred forty-seven".