450626421051431 has 4 divisors (see below), whose sum is σ = 452289249173664. Its totient is φ = 448963592929200.

The previous prime is 450626421051427. The next prime is 450626421051451. The reversal of 450626421051431 is 134150124626054.

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 450626421051431 - 2² = 450626421051427 is a prime.

It is a super-2 number, since 2×450626421051431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450626421051451) 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, 831414060710 + ... + 831414061251.

It is an arithmetic number, because the mean of its divisors is an integer number (113072312293416).

Almost surely, 2^{450626421051431} is an apocalyptic number.

450626421051431 is a deficient number, since it is larger than the sum of its proper divisors (1662828122233).

450626421051431 is a wasteful number, since it uses less digits than its factorization.

450626421051431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662828122232.

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

Adding to 450626421051431 its reverse (134150124626054), we get a palindrome (584776545677485).

The spelling of 450626421051431 in words is "four hundred fifty trillion, six hundred twenty-six billion, four hundred twenty-one million, fifty-one thousand, four hundred thirty-one".