142670978569 has 4 divisors (see below), whose sum is σ = 163052546944. Its totient is φ = 122289410196.

The previous prime is 142670978557. The next prime is 142670978573. The reversal of 142670978569 is 965879076241.

142670978569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142670978569 - 2⁷ = 142670978441 is a prime.

It is a super-2 number, since 2×142670978569² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142670978569.

It is not an unprimeable number, because it can be changed into a prime (142670978869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10190784177 + ... + 10190784190.

It is an arithmetic number, because the mean of its divisors is an integer number (40763136736).

Almost surely, 2^142670978569 is an apocalyptic number.

It is an amenable number.

142670978569 is a deficient number, since it is larger than the sum of its proper divisors (20381568375).

142670978569 is an equidigital number, since it uses as much as digits as its factorization.

142670978569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20381568374.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 142670978569 in words is "one hundred forty-two billion, six hundred seventy million, nine hundred seventy-eight thousand, five hundred sixty-nine".