7928643235 has 16 divisors (see below), whose sum is σ = 10086734592. Its totient is φ = 5972400000.

The previous prime is 7928643199. The next prime is 7928643241. The reversal of 7928643235 is 5323468297.

It is not a de Polignac number, because 7928643235 - 2⁹ = 7928642723 is a prime.

It is a super-2 number, since 2×7928643235² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 685516 + ... + 696985.

It is an arithmetic number, because the mean of its divisors is an integer number (630420912).

Almost surely, 2^7928643235 is an apocalyptic number.

7928643235 is a deficient number, since it is larger than the sum of its proper divisors (2158091357).

7928643235 is a wasteful number, since it uses less digits than its factorization.

7928643235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382574.

The product of its digits is 2177280, while the sum is 49.

The square root of 7928643235 is about 89042.9291690250. The cubic root of 7928643235 is about 1994.0358349638.

The spelling of 7928643235 in words is "seven billion, nine hundred twenty-eight million, six hundred forty-three thousand, two hundred thirty-five".