142444672507 has 4 divisors (see below), whose sum is σ = 142450125016. Its totient is φ = 142439220000.

The previous prime is 142444672493. The next prime is 142444672541. The reversal of 142444672507 is 705276444241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142444672507 - 2¹⁵ = 142444639739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142444672207) 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, 2686878 + ... + 2739379.

It is an arithmetic number, because the mean of its divisors is an integer number (35612531254).

Almost surely, 2^142444672507 is an apocalyptic number.

142444672507 is a deficient number, since it is larger than the sum of its proper divisors (5452509).

142444672507 is an equidigital number, since it uses as much as digits as its factorization.

142444672507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452508.

The product of its (nonzero) digits is 1505280, while the sum is 46.

The spelling of 142444672507 in words is "one hundred forty-two billion, four hundred forty-four million, six hundred seventy-two thousand, five hundred seven".