451348571689 has 4 divisors (see below), whose sum is σ = 470972422656. Its totient is φ = 431724720724.

The previous prime is 451348571671. The next prime is 451348571761. The reversal of 451348571689 is 986175843154.

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 451348571689 - 2⁷ = 451348571561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451348571629) 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, 9811925449 + ... + 9811925494.

It is an arithmetic number, because the mean of its divisors is an integer number (117743105664).

Almost surely, 2^451348571689 is an apocalyptic number.

It is an amenable number.

451348571689 is a deficient number, since it is larger than the sum of its proper divisors (19623850967).

451348571689 is a wasteful number, since it uses less digits than its factorization.

451348571689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19623850966.

The product of its digits is 29030400, while the sum is 61.

The spelling of 451348571689 in words is "four hundred fifty-one billion, three hundred forty-eight million, five hundred seventy-one thousand, six hundred eighty-nine".