7902051065 has 4 divisors (see below), whose sum is σ = 9482461284. Its totient is φ = 6321640848.

The previous prime is 7902051011. The next prime is 7902051089. The reversal of 7902051065 is 5601502097.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4768178704 + 3133872361 = 69052^2 + 55981^2 .

It is a cyclic number.

It is not a de Polignac number, because 7902051065 - 2²⁸ = 7633615609 is a prime.

It is a super-2 number, since 2×7902051065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790205102 + ... + 790205111.

It is an arithmetic number, because the mean of its divisors is an integer number (2370615321).

Almost surely, 2^7902051065 is an apocalyptic number.

It is an amenable number.

7902051065 is a deficient number, since it is larger than the sum of its proper divisors (1580410219).

7902051065 is a wasteful number, since it uses less digits than its factorization.

7902051065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580410218.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 7902051065 is about 88893.4815664231. The cubic root of 7902051065 is about 1991.8040478132.

The spelling of 7902051065 in words is "seven billion, nine hundred two million, fifty-one thousand, sixty-five".