7631280842 has 8 divisors (see below), whose sum is σ = 11447472036. Its totient is φ = 3815456832.

The previous prime is 7631280803. The next prime is 7631280871. The reversal of 7631280842 is 2480821367.

It can be written as a sum of positive squares in 2 ways, for example, as 7522266361 + 109014481 = 86731^2 + 10441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×7631280842³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7631280842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32063 + ... + 127634.

Almost surely, 2^7631280842 is an apocalyptic number.

7631280842 is a deficient number, since it is larger than the sum of its proper divisors (3816191194).

7631280842 is a wasteful number, since it uses less digits than its factorization.

7631280842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183592.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 7631280842 is about 87357.2025765477. The cubic root of 7631280842 is about 1968.7888698304.

The spelling of 7631280842 in words is "seven billion, six hundred thirty-one million, two hundred eighty thousand, eight hundred forty-two".