42400451423 has 8 divisors (see below), whose sum is σ = 46256582736. Its totient is φ = 38544577600.

The previous prime is 42400451411. The next prime is 42400451437. The reversal of 42400451423 is 32415400424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42400451423 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 (42400451123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480515 + ... + 561867.

It is an arithmetic number, because the mean of its divisors is an integer number (5782072842).

Almost surely, 2^42400451423 is an apocalyptic number.

42400451423 is a deficient number, since it is larger than the sum of its proper divisors (3856131313).

42400451423 is a wasteful number, since it uses less digits than its factorization.

42400451423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128745.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 42400451423 its reverse (32415400424), we get a palindrome (74815851847).

The spelling of 42400451423 in words is "forty-two billion, four hundred million, four hundred fifty-one thousand, four hundred twenty-three".