451215045412 has 24 divisors (see below), whose sum is σ = 791309627136. Its totient is φ = 225126711168.

The previous prime is 451215045401. The next prime is 451215045433. The reversal of 451215045412 is 214540512154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20557708 + ... + 20579644.

It is an arithmetic number, because the mean of its divisors is an integer number (32971234464).

Almost surely, 2^451215045412 is an apocalyptic number.

It is an amenable number.

451215045412 is a deficient number, since it is larger than the sum of its proper divisors (340094581724).

451215045412 is a wasteful number, since it uses less digits than its factorization.

451215045412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32667 (or 32665 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

Adding to 451215045412 its reverse (214540512154), we get a palindrome (665755557566).

The spelling of 451215045412 in words is "four hundred fifty-one billion, two hundred fifteen million, forty-five thousand, four hundred twelve".