1378103668 has 24 divisors (see below), whose sum is σ = 2586517920. Its totient is φ = 640467360.

The previous prime is 1378103663. The next prime is 1378103723. The reversal of 1378103668 is 8663018731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378103663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167038 + ... + 175093.

It is an arithmetic number, because the mean of its divisors is an integer number (107771580).

Almost surely, 2^1378103668 is an apocalyptic number.

It is an amenable number.

1378103668 is a deficient number, since it is larger than the sum of its proper divisors (1208414252).

1378103668 is a wasteful number, since it uses less digits than its factorization.

1378103668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342207 (or 342205 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1378103668 is about 37122.8186968608. The cubic root of 1378103668 is about 1112.8260827240.

The spelling of 1378103668 in words is "one billion, three hundred seventy-eight million, one hundred three thousand, six hundred sixty-eight".