1381516680 has 64 divisors (see below), whose sum is σ = 4187312640. Its totient is φ = 364603392.

The previous prime is 1381516627. The next prime is 1381516711. The reversal of 1381516680 is 866151831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47704 + ... + 70983.

It is an arithmetic number, because the mean of its divisors is an integer number (65426760).

Almost surely, 2^1381516680 is an apocalyptic number.

1381516680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1381516680 is an abundant number, since it is smaller than the sum of its proper divisors (2805795960).

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

1381516680 is a wasteful number, since it uses less digits than its factorization.

1381516680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118798 (or 118794 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1381516680 is about 37168.7594627531. The cubic root of 1381516680 is about 1113.7440005169.

The spelling of 1381516680 in words is "one billion, three hundred eighty-one million, five hundred sixteen thousand, six hundred eighty".