1064544002545 has 8 divisors (see below), whose sum is σ = 1277502256296. Its totient is φ = 851602233216.

The previous prime is 1064544002539. The next prime is 1064544002569. The reversal of 1064544002545 is 5452004454601.

It can be written as a sum of positive squares in 4 ways, for example, as 152352824976 + 912191177569 = 390324^2 + 955087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1064544002545 - 2⁹ = 1064544002033 is a prime.

It is a super-2 number, since 2×1064544002545² (a number of 25 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 = 1064544002498 and 1064544002507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3978582 + ... + 4237711.

It is an arithmetic number, because the mean of its divisors is an integer number (159687782037).

Almost surely, 2^{1064544002545} is an apocalyptic number.

It is an amenable number.

1064544002545 is a deficient number, since it is larger than the sum of its proper divisors (212958253751).

1064544002545 is an equidigital number, since it uses as much as digits as its factorization.

1064544002545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8242211.

The product of its (nonzero) digits is 384000, while the sum is 40.

The spelling of 1064544002545 in words is "one trillion, sixty-four billion, five hundred forty-four million, two thousand, five hundred forty-five".