1387765263875 has 8 divisors (see below), whose sum is σ = 1731931049472. Its totient is φ = 1110212211000.

The previous prime is 1387765263793. The next prime is 1387765263877. The reversal of 1387765263875 is 5783625677831.

It is a de Polignac number, because none of the positive numbers 2^k-1387765263875 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387765263877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5551060931 + ... + 5551061180.

It is an arithmetic number, because the mean of its divisors is an integer number (216491381184).

Almost surely, 2^{1387765263875} is an apocalyptic number.

1387765263875 is a deficient number, since it is larger than the sum of its proper divisors (344165785597).

1387765263875 is an equidigital number, since it uses as much as digits as its factorization.

1387765263875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11102122126 (or 11102122116 counting only the distinct ones).

The product of its digits is 355622400, while the sum is 68.

The spelling of 1387765263875 in words is "one trillion, three hundred eighty-seven billion, seven hundred sixty-five million, two hundred sixty-three thousand, eight hundred seventy-five".