1380715557499 has 2 divisors, whose sum is σ = 1380715557500. Its totient is φ = 1380715557498.

The previous prime is 1380715557457. The next prime is 1380715557589. The reversal of 1380715557499 is 9947555170831.

It is a weak prime.

It is an emirp because it is prime and its reverse (9947555170831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1380715557499 - 2²³ = 1380707168891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1380715557499.

It is not a weakly prime, because it can be changed into another prime (1380715552499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690357778749 + 690357778750.

It is an arithmetic number, because the mean of its divisors is an integer number (690357778750).

Almost surely, 2^{1380715557499} is an apocalyptic number.

1380715557499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380715557499 is an equidigital number, since it uses as much as digits as its factorization.

1380715557499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628000, while the sum is 64.

The spelling of 1380715557499 in words is "one trillion, three hundred eighty billion, seven hundred fifteen million, five hundred fifty-seven thousand, four hundred ninety-nine".