42741800621347 has 2 divisors, whose sum is σ = 42741800621348. Its totient is φ = 42741800621346.

The previous prime is 42741800621323. The next prime is 42741800621381. The reversal of 42741800621347 is 74312600814724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42741800621347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42741800621347.

It is not a weakly prime, because it can be changed into another prime (42741800621147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21370900310673 + 21370900310674.

It is an arithmetic number, because the mean of its divisors is an integer number (21370900310674).

Almost surely, 2^{42741800621347} is an apocalyptic number.

42741800621347 is a deficient number, since it is larger than the sum of its proper divisors (1).

42741800621347 is an equidigital number, since it uses as much as digits as its factorization.

42741800621347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 42741800621347 in words is "forty-two trillion, seven hundred forty-one billion, eight hundred million, six hundred twenty-one thousand, three hundred forty-seven".