142087247644 has 12 divisors (see below), whose sum is σ = 249213979224. Its totient is φ = 70883253584.

The previous prime is 142087247641. The next prime is 142087247651. The reversal of 142087247644 is 446742780241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142087247641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40090567 + ... + 40094110.

It is an arithmetic number, because the mean of its divisors is an integer number (20767831602).

Almost surely, 2^142087247644 is an apocalyptic number.

It is an amenable number.

142087247644 is a deficient number, since it is larger than the sum of its proper divisors (107126731580).

142087247644 is a wasteful number, since it uses less digits than its factorization.

142087247644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80185124 (or 80185122 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 49.

The spelling of 142087247644 in words is "one hundred forty-two billion, eighty-seven million, two hundred forty-seven thousand, six hundred forty-four".