1387902541279 has 4 divisors (see below), whose sum is σ = 1392020946784. Its totient is φ = 1383784135776.

The previous prime is 1387902541243. The next prime is 1387902541283. The reversal of 1387902541279 is 9721452097831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1387902541279 - 2¹⁷ = 1387902410207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387902541229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2059202247 + ... + 2059202920.

It is an arithmetic number, because the mean of its divisors is an integer number (348005236696).

Almost surely, 2^{1387902541279} is an apocalyptic number.

1387902541279 is a deficient number, since it is larger than the sum of its proper divisors (4118405505).

1387902541279 is an equidigital number, since it uses as much as digits as its factorization.

1387902541279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118405504.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 1387902541279 in words is "one trillion, three hundred eighty-seven billion, nine hundred two million, five hundred forty-one thousand, two hundred seventy-nine".