450051251511243 has 4 divisors (see below), whose sum is σ = 600068335348328. Its totient is φ = 300034167674160.

The previous prime is 450051251511157. The next prime is 450051251511419. The reversal of 450051251511243 is 342115152150054.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 450051251511243 - 2¹⁶ = 450051251445707 is a prime.

It is a super-2 number, since 2×450051251511243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450051251518243) 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, 75008541918538 + ... + 75008541918543.

It is an arithmetic number, because the mean of its divisors is an integer number (150017083837082).

Almost surely, 2^{450051251511243} is an apocalyptic number.

450051251511243 is a deficient number, since it is larger than the sum of its proper divisors (150017083837085).

450051251511243 is a wasteful number, since it uses less digits than its factorization.

450051251511243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150017083837084.

The product of its (nonzero) digits is 120000, while the sum is 39.

The spelling of 450051251511243 in words is "four hundred fifty trillion, fifty-one billion, two hundred fifty-one million, five hundred eleven thousand, two hundred forty-three".