1248315979879 has 2 divisors, whose sum is σ = 1248315979880. Its totient is φ = 1248315979878.

The previous prime is 1248315979811. The next prime is 1248315979891. The reversal of 1248315979879 is 9789795138421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1248315979879 - 2²⁹ = 1247779108967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1248315974879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624157989939 + 624157989940.

It is an arithmetic number, because the mean of its divisors is an integer number (624157989940).

Almost surely, 2^{1248315979879} is an apocalyptic number.

1248315979879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248315979879 is an equidigital number, since it uses as much as digits as its factorization.

1248315979879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274337280, while the sum is 73.

The spelling of 1248315979879 in words is "one trillion, two hundred forty-eight billion, three hundred fifteen million, nine hundred seventy-nine thousand, eight hundred seventy-nine".