142971563793 has 24 divisors (see below), whose sum is σ = 201258818208. Its totient is φ = 90266899968.

The previous prime is 142971563789. The next prime is 142971563821. The reversal of 142971563793 is 397365179241.

It is not a de Polignac number, because 142971563793 - 2² = 142971563789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (142971563743) 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 23 ways as a sum of consecutive naturals, for example, 3376330 + ... + 3418412.

It is an arithmetic number, because the mean of its divisors is an integer number (8385784092).

Almost surely, 2^142971563793 is an apocalyptic number.

It is an amenable number.

142971563793 is a deficient number, since it is larger than the sum of its proper divisors (58287254415).

142971563793 is a wasteful number, since it uses less digits than its factorization.

142971563793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45261 (or 45242 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 57.

The spelling of 142971563793 in words is "one hundred forty-two billion, nine hundred seventy-one million, five hundred sixty-three thousand, seven hundred ninety-three".