445913689257 has 24 divisors (see below), whose sum is σ = 650427395904. Its totient is φ = 294355005984.

The previous prime is 445913689253. The next prime is 445913689301. The reversal of 445913689257 is 752986319544.

445913689257 is a `hidden beast` number, since 4 + 4 + 591 + 36 + 8 + 9 + 2 + 5 + 7 = 666.

It is not a de Polignac number, because 445913689257 - 2² = 445913689253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445913689194 and 445913689203.

It is not an unprimeable number, because it can be changed into a prime (445913689253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9642763 + ... + 9688895.

It is an arithmetic number, because the mean of its divisors is an integer number (27101141496).

Almost surely, 2^445913689257 is an apocalyptic number.

It is an amenable number.

445913689257 is a deficient number, since it is larger than the sum of its proper divisors (204513706647).

445913689257 is a wasteful number, since it uses less digits than its factorization.

445913689257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56669 (or 56666 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 445913689257 in words is "four hundred forty-five billion, nine hundred thirteen million, six hundred eighty-nine thousand, two hundred fifty-seven".