1185145078446 has 36 divisors (see below), whose sum is σ = 2987049332592. Its totient is φ = 338612879304.

The previous prime is 1185145078417. The next prime is 1185145078471. The reversal of 1185145078446 is 6448705415811.

1185145078446 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 14 + 507 + 84 + 46 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1185145078392 and 1185145078401.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 671850070 + ... + 671851833.

It is an arithmetic number, because the mean of its divisors is an integer number (82973592572).

Almost surely, 2^{1185145078446} is an apocalyptic number.

1185145078446 is an abundant number, since it is smaller than the sum of its proper divisors (1801904254146).

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

1185145078446 is a wasteful number, since it uses less digits than its factorization.

1185145078446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343701925 (or 1343701915 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 1185145078446 in words is "one trillion, one hundred eighty-five billion, one hundred forty-five million, seventy-eight thousand, four hundred forty-six".