7942928658 has 64 divisors (see below), whose sum is σ = 18609343488. Its totient is φ = 2213323200.

The previous prime is 7942928657. The next prime is 7942928659. The reversal of 7942928658 is 8568292497.

It is an interprime number because it is at equal distance from previous prime (7942928657) and next prime (7942928659).

It is not an unprimeable number, because it can be changed into a prime (7942928657) 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 31 ways as a sum of consecutive naturals, for example, 270241 + ... + 298187.

It is an arithmetic number, because the mean of its divisors is an integer number (290770992).

Almost surely, 2^7942928658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7942928658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9304671744).

7942928658 is an abundant number, since it is smaller than the sum of its proper divisors (10666414830).

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

7942928658 is a wasteful number, since it uses less digits than its factorization.

7942928658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28127.

The product of its digits is 17418240, while the sum is 60.

The square root of 7942928658 is about 89123.1095619986. The cubic root of 7942928658 is about 1995.2327002890.

The spelling of 7942928658 in words is "seven billion, nine hundred forty-two million, nine hundred twenty-eight thousand, six hundred fifty-eight".