31867896467161 has 8 divisors (see below), whose sum is σ = 32904497982464. Its totient is φ = 30831832755360.

The previous prime is 31867896467047. The next prime is 31867896467167. The reversal of 31867896467161 is 16176469876813.

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 31867896467161 - 2¹⁹ = 31867895942873 is a prime.

It is a super-3 number, since 3×31867896467161³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31867896467167) 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, 134330436 + ... + 134567461.

It is an arithmetic number, because the mean of its divisors is an integer number (4113062247808).

Almost surely, 2^{31867896467161} is an apocalyptic number.

31867896467161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31867896467161 is a deficient number, since it is larger than the sum of its proper divisors (1036601515303).

31867896467161 is a wasteful number, since it uses less digits than its factorization.

31867896467161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268901751.

The product of its digits is 438939648, while the sum is 73.

The spelling of 31867896467161 in words is "thirty-one trillion, eight hundred sixty-seven billion, eight hundred ninety-six million, four hundred sixty-seven thousand, one hundred sixty-one".