42251545451 has 16 divisors (see below), whose sum is σ = 43200000000. Its totient is φ = 41311286016.

The previous prime is 42251545439. The next prime is 42251545481. The reversal of 42251545451 is 15454515224.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42251545451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42251545481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17610950 + ... + 17613348.

It is an arithmetic number, because the mean of its divisors is an integer number (2700000000).

Almost surely, 2^42251545451 is an apocalyptic number.

42251545451 is a deficient number, since it is larger than the sum of its proper divisors (948454549).

42251545451 is a wasteful number, since it uses less digits than its factorization.

42251545451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946.

The product of its digits is 160000, while the sum is 38.

The spelling of 42251545451 in words is "forty-two billion, two hundred fifty-one million, five hundred forty-five thousand, four hundred fifty-one".