43422156106451 has 4 divisors (see below), whose sum is σ = 43422584506032. Its totient is φ = 43421727706872.

The previous prime is 43422156106447. The next prime is 43422156106489. The reversal of 43422156106451 is 15460165122434.

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 43422156106451 - 2² = 43422156106447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43422156136451) 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, 214047716 + ... + 214250481.

It is an arithmetic number, because the mean of its divisors is an integer number (10855646126508).

Almost surely, 2^{43422156106451} is an apocalyptic number.

43422156106451 is a deficient number, since it is larger than the sum of its proper divisors (428399581).

43422156106451 is a wasteful number, since it uses less digits than its factorization.

43422156106451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428399580.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 43422156106451 in words is "forty-three trillion, four hundred twenty-two billion, one hundred fifty-six million, one hundred six thousand, four hundred fifty-one".