42450451051 has 4 divisors (see below), whose sum is σ = 42463229112. Its totient is φ = 42437672992.

The previous prime is 42450451033. The next prime is 42450451079. The reversal of 42450451051 is 15015405424.

It is a happy number.

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 42450451051 - 2⁷ = 42450450923 is a prime.

It is a super-3 number, since 3×42450451051³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42450451081) 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, 6384046 + ... + 6390691.

It is an arithmetic number, because the mean of its divisors is an integer number (10615807278).

Almost surely, 2^42450451051 is an apocalyptic number.

42450451051 is a deficient number, since it is larger than the sum of its proper divisors (12778061).

42450451051 is a wasteful number, since it uses less digits than its factorization.

42450451051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12778060.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 42450451051 its reverse (15015405424), we get a palindrome (57465856475).

The spelling of 42450451051 in words is "forty-two billion, four hundred fifty million, four hundred fifty-one thousand, fifty-one".