159612778747 has 8 divisors (see below), whose sum is σ = 161499690000. Its totient is φ = 157736743584.

The previous prime is 159612778729. The next prime is 159612778751. The reversal of 159612778747 is 747877216951.

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 159612778747 - 2¹¹ = 159612776699 is a prime.

It is a super-3 number, since 3×159612778747³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159612778727) 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, 2689497 + ... + 2748202.

It is an arithmetic number, because the mean of its divisors is an integer number (20187461250).

Almost surely, 2^159612778747 is an apocalyptic number.

159612778747 is a deficient number, since it is larger than the sum of its proper divisors (1886911253).

159612778747 is a wasteful number, since it uses less digits than its factorization.

159612778747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438045.

The product of its digits is 41489280, while the sum is 64.

The spelling of 159612778747 in words is "one hundred fifty-nine billion, six hundred twelve million, seven hundred seventy-eight thousand, seven hundred forty-seven".