7952758081 has 4 divisors (see below), whose sum is σ = 7953355312. Its totient is φ = 7952160852.

The previous prime is 7952758057. The next prime is 7952758091. The reversal of 7952758081 is 1808572597.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7952758081 - 2⁹ = 7952757569 is a prime.

It is a super-2 number, since 2×7952758081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7952758091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278175 + ... + 305428.

It is an arithmetic number, because the mean of its divisors is an integer number (1988338828).

Almost surely, 2^7952758081 is an apocalyptic number.

It is an amenable number.

7952758081 is a deficient number, since it is larger than the sum of its proper divisors (597231).

7952758081 is a wasteful number, since it uses less digits than its factorization.

7952758081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597230.

The product of its (nonzero) digits is 1411200, while the sum is 52.

The square root of 7952758081 is about 89178.2377096565. The cubic root of 7952758081 is about 1996.0553985913.

The spelling of 7952758081 in words is "seven billion, nine hundred fifty-two million, seven hundred fifty-eight thousand, eighty-one".