1331400025079 has 2 divisors, whose sum is σ = 1331400025080. Its totient is φ = 1331400025078.

The previous prime is 1331400025073. The next prime is 1331400025147. The reversal of 1331400025079 is 9705200041331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331400025079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331400025073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665700012539 + 665700012540.

It is an arithmetic number, because the mean of its divisors is an integer number (665700012540).

Almost surely, 2^{1331400025079} is an apocalyptic number.

1331400025079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331400025079 is an equidigital number, since it uses as much as digits as its factorization.

1331400025079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 1331400025079 in words is "one trillion, three hundred thirty-one billion, four hundred million, twenty-five thousand, seventy-nine".