42949307407 has 2 divisors, whose sum is σ = 42949307408. Its totient is φ = 42949307406.

The previous prime is 42949307381. The next prime is 42949307477. The reversal of 42949307407 is 70470394924.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42949307407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42949307477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21474653703 + 21474653704.

It is an arithmetic number, because the mean of its divisors is an integer number (21474653704).

Almost surely, 2^42949307407 is an apocalyptic number.

42949307407 is a deficient number, since it is larger than the sum of its proper divisors (1).

42949307407 is an equidigital number, since it uses as much as digits as its factorization.

42949307407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 42949307407 in words is "forty-two billion, nine hundred forty-nine million, three hundred seven thousand, four hundred seven".