158227438489 has 8 divisors (see below), whose sum is σ = 163468495872. Its totient is φ = 152994940320.

The previous prime is 158227438487. The next prime is 158227438493. The reversal of 158227438489 is 984834722851.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 158227438489 - 2¹ = 158227438487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158227438487) 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, 2102209 + ... + 2176174.

It is an arithmetic number, because the mean of its divisors is an integer number (20433561984).

Almost surely, 2^158227438489 is an apocalyptic number.

It is an amenable number.

158227438489 is a deficient number, since it is larger than the sum of its proper divisors (5241057383).

158227438489 is a wasteful number, since it uses less digits than its factorization.

158227438489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279607.

The product of its digits is 30965760, while the sum is 61.

The spelling of 158227438489 in words is "one hundred fifty-eight billion, two hundred twenty-seven million, four hundred thirty-eight thousand, four hundred eighty-nine".