1380061890990 has 32 divisors (see below), whose sum is σ = 3680165043360. Its totient is φ = 368016504192.

The previous prime is 1380061890971. The next prime is 1380061890997. The reversal of 1380061890990 is 990981600831.

1380061890990 is a `hidden beast` number, since 13 + 8 + 0 + 0 + 618 + 9 + 0 + 9 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380061890997) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2555669899 + ... + 2555670438.

It is an arithmetic number, because the mean of its divisors is an integer number (115005157605).

Almost surely, 2^{1380061890990} is an apocalyptic number.

1380061890990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380061890990 is an abundant number, since it is smaller than the sum of its proper divisors (2300103152370).

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

1380061890990 is a wasteful number, since it uses less digits than its factorization.

1380061890990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111340353 (or 5111340347 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The spelling of 1380061890990 in words is "one trillion, three hundred eighty billion, sixty-one million, eight hundred ninety thousand, nine hundred ninety".