12865535357554 has 8 divisors (see below), whose sum is σ = 21052694221488. Its totient is φ = 5847970617060.

The previous prime is 12865535357531. The next prime is 12865535357573. The reversal of 12865535357554 is 45575353556821.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292398530832 + ... + 292398530875.

It is an arithmetic number, because the mean of its divisors is an integer number (2631586777686).

Almost surely, 2^{12865535357554} is an apocalyptic number.

12865535357554 is a deficient number, since it is larger than the sum of its proper divisors (8187158863934).

12865535357554 is a wasteful number, since it uses less digits than its factorization.

12865535357554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584797061720.

The product of its digits is 378000000, while the sum is 64.

The spelling of 12865535357554 in words is "twelve trillion, eight hundred sixty-five billion, five hundred thirty-five million, three hundred fifty-seven thousand, five hundred fifty-four".