158671871731 has 8 divisors (see below), whose sum is σ = 160260481584. Its totient is φ = 157083607200.

The previous prime is 158671871719. The next prime is 158671871749. The reversal of 158671871731 is 137178176851.

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 158671871731 - 2⁹ = 158671871219 is a prime.

It is a super-2 number, since 2×158671871731² (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 (158671871791) 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, 892485 + ... + 1055401.

It is an arithmetic number, because the mean of its divisors is an integer number (20032560198).

Almost surely, 2^158671871731 is an apocalyptic number.

158671871731 is a deficient number, since it is larger than the sum of its proper divisors (1588609853).

158671871731 is a wasteful number, since it uses less digits than its factorization.

158671871731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172661.

The product of its digits is 1975680, while the sum is 55.

The spelling of 158671871731 in words is "one hundred fifty-eight billion, six hundred seventy-one million, eight hundred seventy-one thousand, seven hundred thirty-one".