1378764003 has 16 divisors (see below), whose sum is σ = 1921660416. Its totient is φ = 877662720.

The previous prime is 1378763987. The next prime is 1378764017. The reversal of 1378764003 is 3004678731.

It is not a de Polignac number, because 1378764003 - 2⁴ = 1378763987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1378764043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22498 + ... + 57128.

It is an arithmetic number, because the mean of its divisors is an integer number (120103776).

Almost surely, 2^1378764003 is an apocalyptic number.

1378764003 is a deficient number, since it is larger than the sum of its proper divisors (542896413).

1378764003 is a wasteful number, since it uses less digits than its factorization.

1378764003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35234.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1378764003 is about 37131.7115549499. The cubic root of 1378764003 is about 1113.0037956907.

The spelling of 1378764003 in words is "one billion, three hundred seventy-eight million, seven hundred sixty-four thousand, three".