7957805399282 has 4 divisors (see below), whose sum is σ = 11936708098926. Its totient is φ = 3978902699640.

The previous prime is 7957805399267. The next prime is 7957805399317. The reversal of 7957805399282 is 2829935087597.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7506827339881 + 450978059401 = 2739859^2 + 671549^2 .

It is a super-2 number, since 2×7957805399282² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1989451349819 + ... + 1989451349822.

Almost surely, 2^{7957805399282} is an apocalyptic number.

7957805399282 is a deficient number, since it is larger than the sum of its proper divisors (3978902699644).

7957805399282 is a wasteful number, since it uses less digits than its factorization.

7957805399282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978902699643.

The product of its (nonzero) digits is 685843200, while the sum is 74.

The spelling of 7957805399282 in words is "seven trillion, nine hundred fifty-seven billion, eight hundred five million, three hundred ninety-nine thousand, two hundred eighty-two".