7942278132 has 36 divisors (see below), whose sum is σ = 20283295396. Its totient is φ = 2620131840.

The previous prime is 7942278119. The next prime is 7942278139. The reversal of 7942278132 is 2318722497.

It can be written as a sum of positive squares in 2 ways, for example, as 2998219536 + 4944058596 = 54756^2 + 70314^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7942278139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1133719 + ... + 1140702.

Almost surely, 2^7942278132 is an apocalyptic number.

It is an amenable number.

7942278132 is an abundant number, since it is smaller than the sum of its proper divisors (12341017264).

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

7942278132 is a wasteful number, since it uses less digits than its factorization.

7942278132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274528 (or 2274523 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 7942278132 is about 89119.4598951318. The cubic root of 7942278132 is about 1995.1782289372.

The spelling of 7942278132 in words is "seven billion, nine hundred forty-two million, two hundred seventy-eight thousand, one hundred thirty-two".