156791456728 has 32 divisors (see below), whose sum is σ = 295097101200. Its totient is φ = 78099038208.

The previous prime is 156791456699. The next prime is 156791456749. The reversal of 156791456728 is 827654197651.

156791456728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13834168 + ... + 13845496.

Almost surely, 2^156791456728 is an apocalyptic number.

It is an amenable number.

156791456728 is a deficient number, since it is larger than the sum of its proper divisors (138305644472).

156791456728 is a wasteful number, since it uses less digits than its factorization.

156791456728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17731 (or 17727 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 61.

The spelling of 156791456728 in words is "one hundred fifty-six billion, seven hundred ninety-one million, four hundred fifty-six thousand, seven hundred twenty-eight".