450646007536551 has 4 divisors (see below), whose sum is σ = 600861343382072. Its totient is φ = 300430671691032.

The previous prime is 450646007536513. The next prime is 450646007536559. The reversal of 450646007536551 is 155635700646054.

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

It is not a de Polignac number, because 450646007536551 - 2¹³ = 450646007528359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450646007536491 and 450646007536500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450646007536559) 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, 75107667922756 + ... + 75107667922761.

It is an arithmetic number, because the mean of its divisors is an integer number (150215335845518).

Almost surely, 2^{450646007536551} is an apocalyptic number.

450646007536551 is a deficient number, since it is larger than the sum of its proper divisors (150215335845521).

450646007536551 is a wasteful number, since it uses less digits than its factorization.

450646007536551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150215335845520.

The product of its (nonzero) digits is 45360000, while the sum is 57.

The spelling of 450646007536551 in words is "four hundred fifty trillion, six hundred forty-six billion, seven million, five hundred thirty-six thousand, five hundred fifty-one".