1386361875 has 20 divisors (see below), whose sum is σ = 2309866856. Its totient is φ = 739392000.

The previous prime is 1386361861. The next prime is 1386361877. The reversal of 1386361875 is 5781636831.

It is not a de Polignac number, because 1386361875 - 2⁴ = 1386361859 is a prime.

It is a super-4 number, since 4×1386361875⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386361877) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 367822 + ... + 371571.

Almost surely, 2^1386361875 is an apocalyptic number.

1386361875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1386361875 is a deficient number, since it is larger than the sum of its proper divisors (923504981).

1386361875 is an frugal number, since it uses more digits than its factorization.

1386361875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739416 (or 739401 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 1386361875 is about 37233.8807405299. The cubic root of 1386361875 is about 1115.0445061230.

The spelling of 1386361875 in words is "one billion, three hundred eighty-six million, three hundred sixty-one thousand, eight hundred seventy-five".