445621280133 has 32 divisors (see below), whose sum is σ = 601667168256. Its totient is φ = 293358063168.

The previous prime is 445621280129. The next prime is 445621280147. The reversal of 445621280133 is 331082126544.

It is not a de Polignac number, because 445621280133 - 2² = 445621280129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445621280091 and 445621280100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445621280123) 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, 49143066 + ... + 49152132.

It is an arithmetic number, because the mean of its divisors is an integer number (18802099008).

Almost surely, 2^445621280133 is an apocalyptic number.

It is an amenable number.

445621280133 is a deficient number, since it is larger than the sum of its proper divisors (156045888123).

445621280133 is a wasteful number, since it uses less digits than its factorization.

445621280133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 445621280133 in words is "four hundred forty-five billion, six hundred twenty-one million, two hundred eighty thousand, one hundred thirty-three".