42340125641 has 4 divisors (see below), whose sum is σ = 46189227984. Its totient is φ = 38491023300.

The previous prime is 42340125637. The next prime is 42340125647. The reversal of 42340125641 is 14652104324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42340125641 - 2² = 42340125637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42340125598 and 42340125607.

It is not an unprimeable number, because it can be changed into a prime (42340125647) 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, 1924551155 + ... + 1924551176.

It is an arithmetic number, because the mean of its divisors is an integer number (11547306996).

Almost surely, 2^42340125641 is an apocalyptic number.

It is an amenable number.

42340125641 is a deficient number, since it is larger than the sum of its proper divisors (3849102343).

42340125641 is a wasteful number, since it uses less digits than its factorization.

42340125641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849102342.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 42340125641 its reverse (14652104324), we get a palindrome (56992229965).

The spelling of 42340125641 in words is "forty-two billion, three hundred forty million, one hundred twenty-five thousand, six hundred forty-one".