1285536930646 has 16 divisors (see below), whose sum is σ = 1929230447040. Its totient is φ = 642460181440.

The previous prime is 1285536930617. The next prime is 1285536930661. The reversal of 1285536930646 is 6460396355821.

It is a super-2 number, since 2×1285536930646² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 70127610 + ... + 70145938.

It is an arithmetic number, because the mean of its divisors is an integer number (120576902940).

Almost surely, 2^{1285536930646} is an apocalyptic number.

1285536930646 is a deficient number, since it is larger than the sum of its proper divisors (643693516394).

1285536930646 is a wasteful number, since it uses less digits than its factorization.

1285536930646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33239.

The product of its (nonzero) digits is 27993600, while the sum is 58.

The spelling of 1285536930646 in words is "one trillion, two hundred eighty-five billion, five hundred thirty-six million, nine hundred thirty thousand, six hundred forty-six".