1387115404475 has 12 divisors (see below), whose sum is σ = 1720053227256. Its totient is φ = 1109672887680.

The previous prime is 1387115404469. The next prime is 1387115404501. The reversal of 1387115404475 is 5744045117831.

It is not a de Polignac number, because 1387115404475 - 2⁸ = 1387115404219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1067384 + ... + 1978266.

It is an arithmetic number, because the mean of its divisors is an integer number (143337768938).

Almost surely, 2^{1387115404475} is an apocalyptic number.

1387115404475 is a deficient number, since it is larger than the sum of its proper divisors (332937822781).

1387115404475 is an equidigital number, since it uses as much as digits as its factorization.

1387115404475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971806 (or 971801 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 1387115404475 in words is "one trillion, three hundred eighty-seven billion, one hundred fifteen million, four hundred four thousand, four hundred seventy-five".