142004777709 has 4 divisors (see below), whose sum is σ = 189339703616. Its totient is φ = 94669851804.

The previous prime is 142004777699. The next prime is 142004777731. The reversal of 142004777709 is 907777400241.

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 not a de Polignac number, because 142004777709 - 2¹⁵ = 142004744941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142004770709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23667462949 + ... + 23667462954.

It is an arithmetic number, because the mean of its divisors is an integer number (47334925904).

Almost surely, 2^142004777709 is an apocalyptic number.

It is an amenable number.

142004777709 is a deficient number, since it is larger than the sum of its proper divisors (47334925907).

142004777709 is an equidigital number, since it uses as much as digits as its factorization.

142004777709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47334925906.

The product of its (nonzero) digits is 691488, while the sum is 48.

The spelling of 142004777709 in words is "one hundred forty-two billion, four million, seven hundred seventy-seven thousand, seven hundred nine".