1371912816 has 20 divisors (see below), whose sum is σ = 3544108232. Its totient is φ = 457304256.

The previous prime is 1371912799. The next prime is 1371912821. The reversal of 1371912816 is 6182191731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14290711 + ... + 14290806.

Almost surely, 2^1371912816 is an apocalyptic number.

1371912816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1371912816 is an abundant number, since it is smaller than the sum of its proper divisors (2172195416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1371912816 is a wasteful number, since it uses less digits than its factorization.

1371912816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28581528 (or 28581522 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 1371912816 is about 37039.3414628284. The cubic root of 1371912816 is about 1111.1571991490.

The spelling of 1371912816 in words is "one billion, three hundred seventy-one million, nine hundred twelve thousand, eight hundred sixteen".