42007570387 has 2 divisors, whose sum is σ = 42007570388. Its totient is φ = 42007570386.

The previous prime is 42007570349. The next prime is 42007570393. The reversal of 42007570387 is 78307570024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42007570387 is a prime.

It is not a weakly prime, because it can be changed into another prime (42007570327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21003785193 + 21003785194.

It is an arithmetic number, because the mean of its divisors is an integer number (21003785194).

Almost surely, 2^42007570387 is an apocalyptic number.

42007570387 is a deficient number, since it is larger than the sum of its proper divisors (1).

42007570387 is an equidigital number, since it uses as much as digits as its factorization.

42007570387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 42007570387 in words is "forty-two billion, seven million, five hundred seventy thousand, three hundred eighty-seven".