60438867791 has 2 divisors, whose sum is σ = 60438867792. Its totient is φ = 60438867790.

The previous prime is 60438867733. The next prime is 60438867809. The reversal of 60438867791 is 19776883406.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60438867791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 60438867791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60438867701) 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 as a sum of consecutive naturals, namely, 30219433895 + 30219433896.

It is an arithmetic number, because the mean of its divisors is an integer number (30219433896).

Almost surely, 2^60438867791 is an apocalyptic number.

60438867791 is a deficient number, since it is larger than the sum of its proper divisors (1).

60438867791 is an equidigital number, since it uses as much as digits as its factorization.

60438867791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 60438867791 in words is "sixty billion, four hundred thirty-eight million, eight hundred sixty-seven thousand, seven hundred ninety-one".