1378703572828 has 24 divisors (see below), whose sum is σ = 2423595807360. Its totient is φ = 686248872960.

The previous prime is 1378703572817. The next prime is 1378703572871. The reversal of 1378703572828 is 8282753078731.

It is a happy number.

It is a congruent number.

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, 4349388 + ... + 4655596.

It is an arithmetic number, because the mean of its divisors is an integer number (100983158640).

Almost surely, 2^{1378703572828} is an apocalyptic number.

It is an amenable number.

1378703572828 is a deficient number, since it is larger than the sum of its proper divisors (1044892234532).

1378703572828 is a wasteful number, since it uses less digits than its factorization.

1378703572828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311277 (or 311275 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 61.

The spelling of 1378703572828 in words is "one trillion, three hundred seventy-eight billion, seven hundred three million, five hundred seventy-two thousand, eight hundred twenty-eight".