867111532072 has 16 divisors (see below), whose sum is σ = 1637701527060. Its totient is φ = 430391124864.

The previous prime is 867111532061. The next prime is 867111532123. The reversal of 867111532072 is 270235111768.

It can be written as a sum of positive squares in 2 ways, for example, as 856117170756 + 10994361316 = 925266^2 + 104854^2 .

It is a super-2 number, since 2×867111532072² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395578983 + ... + 395581174.

Almost surely, 2^867111532072 is an apocalyptic number.

It is an amenable number.

867111532072 is a deficient number, since it is larger than the sum of its proper divisors (770589994988).

867111532072 is a wasteful number, since it uses less digits than its factorization.

867111532072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791160300 (or 791160296 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 867111532072 in words is "eight hundred sixty-seven billion, one hundred eleven million, five hundred thirty-two thousand, seventy-two".