7741672081 has 12 divisors (see below), whose sum is σ = 9164015476. Its totient is φ = 6496506720.

The previous prime is 7741672073. The next prime is 7741672117. The reversal of 7741672081 is 1802761477.

It can be written as a sum of positive squares in 2 ways, for example, as 3974167681 + 3767504400 = 63041^2 + 61380^2 .

It is not a de Polignac number, because 7741672081 - 2³ = 7741672073 is a prime.

It is a super-2 number, since 2×7741672081² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7741672481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2459226 + ... + 2462371.

Almost surely, 2^7741672081 is an apocalyptic number.

It is an amenable number.

7741672081 is a deficient number, since it is larger than the sum of its proper divisors (1422343395).

7741672081 is a wasteful number, since it uses less digits than its factorization.

7741672081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921632 (or 4921621 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 7741672081 is about 87986.7721933246. The cubic root of 7741672081 is about 1978.2367120640.

The spelling of 7741672081 in words is "seven billion, seven hundred forty-one million, six hundred seventy-two thousand, eighty-one".