42145115706907 has 2 divisors, whose sum is σ = 42145115706908. Its totient is φ = 42145115706906.

The previous prime is 42145115706893. The next prime is 42145115706913. The reversal of 42145115706907 is 70960751154124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42145115706907 is a prime.

It is not a weakly prime, because it can be changed into another prime (42145115706917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21072557853453 + 21072557853454.

It is an arithmetic number, because the mean of its divisors is an integer number (21072557853454).

Almost surely, 2^{42145115706907} is an apocalyptic number.

42145115706907 is a deficient number, since it is larger than the sum of its proper divisors (1).

42145115706907 is an equidigital number, since it uses as much as digits as its factorization.

42145115706907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 42145115706907 in words is "forty-two trillion, one hundred forty-five billion, one hundred fifteen million, seven hundred six thousand, nine hundred seven".