7951630442 has 16 divisors (see below), whose sum is σ = 13756427520. Its totient is φ = 3376576368.

The previous prime is 7951630441. The next prime is 7951630457. The reversal of 7951630442 is 2440361597.

It is a super-2 number, since 2×7951630442² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7951630442.

It is not an unprimeable number, because it can be changed into a prime (7951630441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603858 + ... + 2606909.

It is an arithmetic number, because the mean of its divisors is an integer number (859776720).

Almost surely, 2^7951630442 is an apocalyptic number.

7951630442 is a deficient number, since it is larger than the sum of its proper divisors (5804797078).

7951630442 is a wasteful number, since it uses less digits than its factorization.

7951630442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210885.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 7951630442 is about 89171.9150966267. The cubic root of 7951630442 is about 1995.9610524420.

The spelling of 7951630442 in words is "seven billion, nine hundred fifty-one million, six hundred thirty thousand, four hundred forty-two".