1250283980905 has 8 divisors (see below), whose sum is σ = 1501273254600. Its totient is φ = 999605533056.

The previous prime is 1250283980903. The next prime is 1250283980941. The reversal of 1250283980905 is 5090893820521.

It can be written as a sum of positive squares in 4 ways, for example, as 278080092889 + 972203888016 = 527333^2 + 986004^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1250283980905 - 2¹ = 1250283980903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1250283980903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77697610 + ... + 77713699.

It is an arithmetic number, because the mean of its divisors is an integer number (187659156825).

Almost surely, 2^{1250283980905} is an apocalyptic number.

It is an amenable number.

1250283980905 is a deficient number, since it is larger than the sum of its proper divisors (250989273695).

1250283980905 is a wasteful number, since it uses less digits than its factorization.

1250283980905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155412923.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 1250283980905 in words is "one trillion, two hundred fifty billion, two hundred eighty-three million, nine hundred eighty thousand, nine hundred five".