1243157044602 has 48 divisors (see below), whose sum is σ = 2777692278816. Its totient is φ = 370538599200.

The previous prime is 1243157044589. The next prime is 1243157044627. The reversal of 1243157044602 is 2064407513421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13991268 + ... + 14079839.

It is an arithmetic number, because the mean of its divisors is an integer number (57868589142).

Almost surely, 2^{1243157044602} is an apocalyptic number.

1243157044602 is an abundant number, since it is smaller than the sum of its proper divisors (1534535234214).

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

1243157044602 is a wasteful number, since it uses less digits than its factorization.

1243157044602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28071195 (or 28071184 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 1243157044602 in words is "one trillion, two hundred forty-three billion, one hundred fifty-seven million, forty-four thousand, six hundred two".