7891032132 has 18 divisors (see below), whose sum is σ = 19946775758. Its totient is φ = 2630344032.

The previous prime is 7891032091. The next prime is 7891032151. The reversal of 7891032132 is 2312301987.

It can be written as a sum of positive squares in only one way, i.e., 6939556416 + 951475716 = 83304^2 + 30846^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 219195337 = 7891032132 / (7 + 8 + 9 + 1 + 0 + 3 + 2 + 1 + 3 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109597633 + ... + 109597704.

Almost surely, 2^7891032132 is an apocalyptic number.

It is an amenable number.

7891032132 is an abundant number, since it is smaller than the sum of its proper divisors (12055743626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7891032132 is a wasteful number, since it uses less digits than its factorization.

7891032132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219195347 (or 219195342 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 7891032132 is about 88831.4816492441. The cubic root of 7891032132 is about 1990.8778003282.

The spelling of 7891032132 in words is "seven billion, eight hundred ninety-one million, thirty-two thousand, one hundred thirty-two".