142577623961 has 4 divisors (see below), whose sum is σ = 142729788852. Its totient is φ = 142425459072.

The previous prime is 142577623933. The next prime is 142577623973. The reversal of 142577623961 is 169326775241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56012215561 + 86565408400 = 236669^2 + 294220^2 .

It is a cyclic number.

It is not a de Polignac number, because 142577623961 - 2⁶ = 142577623897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142577623931) 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, 76081040 + ... + 76082913.

It is an arithmetic number, because the mean of its divisors is an integer number (35682447213).

Almost surely, 2^142577623961 is an apocalyptic number.

It is an amenable number.

142577623961 is a deficient number, since it is larger than the sum of its proper divisors (152164891).

142577623961 is an equidigital number, since it uses as much as digits as its factorization.

142577623961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152164890.

The product of its digits is 3810240, while the sum is 53.

The spelling of 142577623961 in words is "one hundred forty-two billion, five hundred seventy-seven million, six hundred twenty-three thousand, nine hundred sixty-one".