156791270786 has 4 divisors (see below), whose sum is σ = 235186906182. Its totient is φ = 78395635392.

The previous prime is 156791270749. The next prime is 156791270791. The reversal of 156791270786 is 687072197651.

156791270786 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 687072197651 = 7 ⋅98153171093.

It can be written as a sum of positive squares in only one way, i.e., 155184784225 + 1606486561 = 393935^2 + 40081^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39197817695 + ... + 39197817698.

Almost surely, 2^156791270786 is an apocalyptic number.

156791270786 is a deficient number, since it is larger than the sum of its proper divisors (78395635396).

156791270786 is an equidigital number, since it uses as much as digits as its factorization.

156791270786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78395635395.

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 156791270786 in words is "one hundred fifty-six billion, seven hundred ninety-one million, two hundred seventy thousand, seven hundred eighty-six".