7965126401 has 4 divisors (see below), whose sum is σ = 8384343600. Its totient is φ = 7545909204.

The previous prime is 7965126353. The next prime is 7965126431. The reversal of 7965126401 is 1046215697.

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 not a de Polignac number, because 7965126401 - 2²² = 7960932097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7965126431) 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, 209608571 + ... + 209608608.

It is an arithmetic number, because the mean of its divisors is an integer number (2096085900).

Almost surely, 2^7965126401 is an apocalyptic number.

It is an amenable number.

7965126401 is a deficient number, since it is larger than the sum of its proper divisors (419217199).

7965126401 is a wasteful number, since it uses less digits than its factorization.

7965126401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419217198.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 7965126401 is about 89247.5568349073. The cubic root of 7965126401 is about 1997.0896336883.

The spelling of 7965126401 in words is "seven billion, nine hundred sixty-five million, one hundred twenty-six thousand, four hundred one".