451312342215 has 32 divisors (see below), whose sum is σ = 829446013440. Its totient is φ = 205266923904.

The previous prime is 451312342147. The next prime is 451312342219. The reversal of 451312342215 is 512243213154.

It is not a de Polignac number, because 451312342215 - 2¹⁴ = 451312325831 is a prime.

It is a super-2 number, since 2×451312342215² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451312342219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10888485 + ... + 10929854.

It is an arithmetic number, because the mean of its divisors is an integer number (25920187920).

Almost surely, 2^451312342215 is an apocalyptic number.

451312342215 is a deficient number, since it is larger than the sum of its proper divisors (378133671225).

451312342215 is a wasteful number, since it uses less digits than its factorization.

451312342215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21818551.

The product of its digits is 28800, while the sum is 33.

Adding to 451312342215 its reverse (512243213154), we get a palindrome (963555555369).

The spelling of 451312342215 in words is "four hundred fifty-one billion, three hundred twelve million, three hundred forty-two thousand, two hundred fifteen".