158840488891 has 8 divisors (see below), whose sum is σ = 181649648384. Its totient is φ = 136060744680.

The previous prime is 158840488871. The next prime is 158840488913. The reversal of 158840488891 is 198884048851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 158840488891 - 2²¹ = 158838391739 is a prime.

It is a super-2 number, since 2×158840488891² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158840488871) 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, 7342245 + ... + 7363846.

It is an arithmetic number, because the mean of its divisors is an integer number (22706206048).

Almost surely, 2^158840488891 is an apocalyptic number.

158840488891 is a deficient number, since it is larger than the sum of its proper divisors (22809159493).

158840488891 is a wasteful number, since it uses less digits than its factorization.

158840488891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14707641.

The product of its (nonzero) digits is 23592960, while the sum is 64.

The spelling of 158840488891 in words is "one hundred fifty-eight billion, eight hundred forty million, four hundred eighty-eight thousand, eight hundred ninety-one".