1325797951451 has 2 divisors, whose sum is σ = 1325797951452. Its totient is φ = 1325797951450.

The previous prime is 1325797951363. The next prime is 1325797951453. The reversal of 1325797951451 is 1541597975231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1325797951451 is a prime.

Together with 1325797951453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1325797951453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662898975725 + 662898975726.

It is an arithmetic number, because the mean of its divisors is an integer number (662898975726).

Almost surely, 2^{1325797951451} is an apocalyptic number.

1325797951451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325797951451 is an equidigital number, since it uses as much as digits as its factorization.

1325797951451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11907000, while the sum is 59.

The spelling of 1325797951451 in words is "one trillion, three hundred twenty-five billion, seven hundred ninety-seven million, nine hundred fifty-one thousand, four hundred fifty-one".