1387870325578 has 16 divisors (see below), whose sum is σ = 2296578070080. Its totient is φ = 623761943200.

The previous prime is 1387870325551. The next prime is 1387870325599. The reversal of 1387870325578 is 8755230787831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354408238 + ... + 354412153.

It is an arithmetic number, because the mean of its divisors is an integer number (143536129380).

Almost surely, 2^{1387870325578} is an apocalyptic number.

1387870325578 is a deficient number, since it is larger than the sum of its proper divisors (908707744502).

1387870325578 is a wasteful number, since it uses less digits than its factorization.

1387870325578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708820493.

The product of its (nonzero) digits is 79027200, while the sum is 64.

The spelling of 1387870325578 in words is "one trillion, three hundred eighty-seven billion, eight hundred seventy million, three hundred twenty-five thousand, five hundred seventy-eight".