1542340990836 has 36 divisors (see below), whose sum is σ = 3972255575652. Its totient is φ = 504413405184.

The previous prime is 1542340990787. The next prime is 1542340990843. The reversal of 1542340990836 is 6380990432451.

1542340990836 is a `hidden beast` number, since 1 + 54 + 23 + 409 + 90 + 83 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1345497921936 + 196843068900 = 1159956^2 + 443670^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404175501 + ... + 404179316.

It is an arithmetic number, because the mean of its divisors is an integer number (110340432657).

Almost surely, 2^{1542340990836} is an apocalyptic number.

It is an amenable number.

1542340990836 is an abundant number, since it is smaller than the sum of its proper divisors (2429914584816).

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

1542340990836 is a wasteful number, since it uses less digits than its factorization.

1542340990836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808354880 (or 808354875 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 1542340990836 in words is "one trillion, five hundred forty-two billion, three hundred forty million, nine hundred ninety thousand, eight hundred thirty-six".