1285724586745 has 8 divisors (see below), whose sum is σ = 1542950997120. Its totient is φ = 1028525340720.

The previous prime is 1285724586743. The next prime is 1285724586761. The reversal of 1285724586745 is 5476854275821.

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

It is not a de Polignac number, because 1285724586745 - 2¹ = 1285724586743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285724586743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6686811 + ... + 6876400.

It is an arithmetic number, because the mean of its divisors is an integer number (192868874640).

Almost surely, 2^{1285724586745} is an apocalyptic number.

It is an amenable number.

1285724586745 is a deficient number, since it is larger than the sum of its proper divisors (257226410375).

1285724586745 is a wasteful number, since it uses less digits than its factorization.

1285724586745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13582175.

The product of its digits is 150528000, while the sum is 64.

The spelling of 1285724586745 in words is "one trillion, two hundred eighty-five billion, seven hundred twenty-four million, five hundred eighty-six thousand, seven hundred forty-five".