42001450353647 has 2 divisors, whose sum is σ = 42001450353648. Its totient is φ = 42001450353646.

The previous prime is 42001450353619. The next prime is 42001450353659. The reversal of 42001450353647 is 74635305410024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42001450353647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42001450353598 and 42001450353607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42001450353547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21000725176823 + 21000725176824.

It is an arithmetic number, because the mean of its divisors is an integer number (21000725176824).

Almost surely, 2^{42001450353647} is an apocalyptic number.

42001450353647 is a deficient number, since it is larger than the sum of its proper divisors (1).

42001450353647 is an equidigital number, since it uses as much as digits as its factorization.

42001450353647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 42001450353647 in words is "forty-two trillion, one billion, four hundred fifty million, three hundred fifty-three thousand, six hundred forty-seven".