42507140398079 has 4 divisors (see below), whose sum is σ = 48579589026384. Its totient is φ = 36434691769776.

The previous prime is 42507140398057. The next prime is 42507140398117. The reversal of 42507140398079 is 97089304170524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42507140398079 - 2¹² = 42507140393983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42507140398039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3036224314142 + ... + 3036224314155.

It is an arithmetic number, because the mean of its divisors is an integer number (12144897256596).

Almost surely, 2^{42507140398079} is an apocalyptic number.

42507140398079 is a deficient number, since it is larger than the sum of its proper divisors (6072448628305).

42507140398079 is an equidigital number, since it uses as much as digits as its factorization.

42507140398079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072448628304.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 42507140398079 in words is "forty-two trillion, five hundred seven billion, one hundred forty million, three hundred ninety-eight thousand, seventy-nine".