7928856741 has 16 divisors (see below), whose sum is σ = 11388758976. Its totient is φ = 4877696256.

The previous prime is 7928856721. The next prime is 7928856757. The reversal of 7928856741 is 1476588297.

It is not a de Polignac number, because 7928856741 - 2¹¹ = 7928854693 is a prime.

It is a super-2 number, since 2×7928856741² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7928856721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93181 + ... + 156653.

It is an arithmetic number, because the mean of its divisors is an integer number (711797436).

Almost surely, 2^7928856741 is an apocalyptic number.

It is an amenable number.

7928856741 is a deficient number, since it is larger than the sum of its proper divisors (3459902235).

7928856741 is a wasteful number, since it uses less digits than its factorization.

7928856741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66692.

The product of its digits is 6773760, while the sum is 57.

The square root of 7928856741 is about 89044.1280545775. The cubic root of 7928856741 is about 1994.0537335618.

The spelling of 7928856741 in words is "seven billion, nine hundred twenty-eight million, eight hundred fifty-six thousand, seven hundred forty-one".