1325851696997 has 4 divisors (see below), whose sum is σ = 1395633365280. Its totient is φ = 1256070028716.

The previous prime is 1325851696979. The next prime is 1325851697003. The reversal of 1325851696997 is 7996961585231.

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 1325851696997 - 2²⁴ = 1325834919781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325851696997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325851696397) 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, 34890834113 + ... + 34890834150.

It is an arithmetic number, because the mean of its divisors is an integer number (348908341320).

Almost surely, 2^{1325851696997} is an apocalyptic number.

It is an amenable number.

1325851696997 is a deficient number, since it is larger than the sum of its proper divisors (69781668283).

1325851696997 is an equidigital number, since it uses as much as digits as its factorization.

1325851696997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69781668282.

The product of its digits is 220449600, while the sum is 71.

The spelling of 1325851696997 in words is "one trillion, three hundred twenty-five billion, eight hundred fifty-one million, six hundred ninety-six thousand, nine hundred ninety-seven".