450020123465747 has 4 divisors (see below), whose sum is σ = 450020199343560. Its totient is φ = 450020047587936.

The previous prime is 450020123465743. The next prime is 450020123465831. The reversal of 450020123465747 is 747564321020054.

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 450020123465747 - 2² = 450020123465743 is a prime.

It is a super-2 number, since 2×450020123465747² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450020123465695 and 450020123465704.

It is not an unprimeable number, because it can be changed into a prime (450020123465743) 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, 28211222 + ... + 41181467.

It is an arithmetic number, because the mean of its divisors is an integer number (112505049835890).

Almost surely, 2^{450020123465747} is an apocalyptic number.

450020123465747 is a deficient number, since it is larger than the sum of its proper divisors (75877813).

450020123465747 is an equidigital number, since it uses as much as digits as its factorization.

450020123465747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75877812.

The product of its (nonzero) digits is 5644800, while the sum is 50.

The spelling of 450020123465747 in words is "four hundred fifty trillion, twenty billion, one hundred twenty-three million, four hundred sixty-five thousand, seven hundred forty-seven".