156726867798 has 12 divisors (see below), whose sum is σ = 339574880268. Its totient is φ = 52242289260.

The previous prime is 156726867769. The next prime is 156726867811. The reversal of 156726867798 is 897768627651.

It is a super-2 number, since 2×156726867798² (a number of 23 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 5 ways as a sum of consecutive naturals, for example, 4353524088 + ... + 4353524123.

It is an arithmetic number, because the mean of its divisors is an integer number (28297906689).

Almost surely, 2^156726867798 is an apocalyptic number.

156726867798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

156726867798 is an abundant number, since it is smaller than the sum of its proper divisors (182848012470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156726867798 is a wasteful number, since it uses less digits than its factorization.

156726867798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8707048219 (or 8707048216 counting only the distinct ones).

The product of its digits is 426746880, while the sum is 72.

The spelling of 156726867798 in words is "one hundred fifty-six billion, seven hundred twenty-six million, eight hundred sixty-seven thousand, seven hundred ninety-eight".