1125686033450 has 48 divisors (see below), whose sum is σ = 2345852293344. Its totient is φ = 398277115200.

The previous prime is 1125686033447. The next prime is 1125686033471. The reversal of 1125686033450 is 543306865211.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 27637784 + ... + 27678483.

It is an arithmetic number, because the mean of its divisors is an integer number (48871922778).

Almost surely, 2^{1125686033450} is an apocalyptic number.

1125686033450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125686033450 is an abundant number, since it is smaller than the sum of its proper divisors (1220166259894).

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

1125686033450 is a wasteful number, since it uses less digits than its factorization.

1125686033450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55316327 (or 55316322 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1125686033450 in words is "one trillion, one hundred twenty-five billion, six hundred eighty-six million, thirty-three thousand, four hundred fifty".