7953346681 has 4 divisors (see below), whose sum is σ = 9089539072. Its totient is φ = 6817154292.

The previous prime is 7953346669. The next prime is 7953346699. The reversal of 7953346681 is 1866433597.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1866433597 = 7 ⋅266633371.

It is a cyclic number.

It is not a de Polignac number, because 7953346681 - 2¹³ = 7953338489 is a prime.

It is a super-2 number, since 2×7953346681² (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 (7953346481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568096185 + ... + 568096198.

It is an arithmetic number, because the mean of its divisors is an integer number (2272384768).

Almost surely, 2^7953346681 is an apocalyptic number.

It is an amenable number.

7953346681 is a deficient number, since it is larger than the sum of its proper divisors (1136192391).

7953346681 is a wasteful number, since it uses less digits than its factorization.

7953346681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136192390.

The product of its digits is 3265920, while the sum is 52.

The square root of 7953346681 is about 89181.5377810901. The cubic root of 7953346681 is about 1996.1046414331.

The spelling of 7953346681 in words is "seven billion, nine hundred fifty-three million, three hundred forty-six thousand, six hundred eighty-one".