1380456392550 has 24 divisors (see below), whose sum is σ = 3423531853896. Its totient is φ = 368121704640.

The previous prime is 1380456392531. The next prime is 1380456392561. The reversal of 1380456392550 is 552936540831.

It is a junction number, because it is equal to n+sod(n) for n = 1380456392493 and 1380456392502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4601521159 + ... + 4601521458.

It is an arithmetic number, because the mean of its divisors is an integer number (142647160579).

Almost surely, 2^{1380456392550} is an apocalyptic number.

1380456392550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380456392550 is an abundant number, since it is smaller than the sum of its proper divisors (2043075461346).

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

1380456392550 is a wasteful number, since it uses less digits than its factorization.

1380456392550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9203042632 (or 9203042627 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 1380456392550 in words is "one trillion, three hundred eighty billion, four hundred fifty-six million, three hundred ninety-two thousand, five hundred fifty".