42407309647 has 2 divisors, whose sum is σ = 42407309648. Its totient is φ = 42407309646.

The previous prime is 42407309641. The next prime is 42407309657. The reversal of 42407309647 is 74690370424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42407309647 - 2³ = 42407309639 is a prime.

It is a super-2 number, since 2×42407309647² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42407309597 and 42407309606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42407309641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21203654823 + 21203654824.

It is an arithmetic number, because the mean of its divisors is an integer number (21203654824).

Almost surely, 2^42407309647 is an apocalyptic number.

42407309647 is a deficient number, since it is larger than the sum of its proper divisors (1).

42407309647 is an equidigital number, since it uses as much as digits as its factorization.

42407309647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 42407309647 in words is "forty-two billion, four hundred seven million, three hundred nine thousand, six hundred forty-seven".