142635135780 has 36 divisors (see below), whose sum is σ = 432659912412. Its totient is φ = 38036036160.

The previous prime is 142635135779. The next prime is 142635135833. The reversal of 142635135780 is 87531536241.

It is a happy number.

142635135780 is a `hidden beast` number, since 1 + 4 + 2 + 6 + 3 + 513 + 57 + 80 = 666.

142635135780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 46886973156 + 95748162624 = 216534^2 + 309432^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (45).

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 11 ways as a sum of consecutive naturals, for example, 396208531 + ... + 396208890.

Almost surely, 2^142635135780 is an apocalyptic number.

142635135780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142635135780 is an abundant number, since it is smaller than the sum of its proper divisors (290024776632).

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

142635135780 is a wasteful number, since it uses less digits than its factorization.

142635135780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792417436 (or 792417431 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 142635135780 in words is "one hundred forty-two billion, six hundred thirty-five million, one hundred thirty-five thousand, seven hundred eighty".