1380927656640 has 224 divisors, whose sum is σ = 5172433956864. Its totient is φ = 305458606080.

The previous prime is 1380927656593. The next prime is 1380927656683. The reversal of 1380927656640 is 466567290831.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×1380927656640² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3106119 + ... + 3522758.

It is a 1-persistent number, because it is pandigital, but 2⋅1380927656640 = 2761855313280 is not.

Almost surely, 2^{1380927656640} is an apocalyptic number.

1380927656640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380927656640 is an abundant number, since it is smaller than the sum of its proper divisors (3791506300224).

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

1380927656640 is a wasteful number, since it uses less digits than its factorization.

1380927656640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628935 (or 6628925 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 1380927656640 in words is "one trillion, three hundred eighty billion, nine hundred twenty-seven million, six hundred fifty-six thousand, six hundred forty".