158722787227851 has 144 divisors (see below), whose sum is σ = 316342943454720. Its totient is φ = 74717492256000.

The previous prime is 158722787227843. The next prime is 158722787227859.

158722787227851 is a `hidden beast` number, since 1 + 5 + 8 + 7 + 227 + 87 + 2 + 278 + 51 = 666.

158722787227851 is nontrivially palindromic in base 10.

158722787227851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (158722787227843) and next prime (158722787227859).

It is not a de Polignac number, because 158722787227851 - 2³ = 158722787227843 is a prime.

It is a super-3 number, since 3×158722787227851³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 158722787227851.

It is not an unprimeable number, because it can be changed into a prime (158722787227859) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20492050 + ... + 27154551.

Almost surely, 2^{158722787227851} is an apocalyptic number.

158722787227851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

158722787227851 is a deficient number, since it is larger than the sum of its proper divisors (157620156226869).

158722787227851 is a wasteful number, since it uses less digits than its factorization.

158722787227851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47646678 (or 47646664 counting only the distinct ones).

The product of its digits is 491724800, while the sum is 72.

The spelling of 158722787227851 in words is "one hundred fifty-eight trillion, seven hundred twenty-two billion, seven hundred eighty-seven million, two hundred twenty-seven thousand, eight hundred fifty-one".