142147477744 has 20 divisors (see below), whose sum is σ = 276046804096. Its totient is φ = 70909592832.

The previous prime is 142147477709. The next prime is 142147477789. The reversal of 142147477744 is 447774741241.

It is a junction number, because it is equal to n+sod(n) for n = 142147477691 and 142147477700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10251984 + ... + 10265839.

Almost surely, 2^142147477744 is an apocalyptic number.

It is an amenable number.

142147477744 is a deficient number, since it is larger than the sum of its proper divisors (133899326352).

142147477744 is a wasteful number, since it uses less digits than its factorization.

142147477744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20518264 (or 20518258 counting only the distinct ones).

The product of its digits is 4917248, while the sum is 52.

The spelling of 142147477744 in words is "one hundred forty-two billion, one hundred forty-seven million, four hundred seventy-seven thousand, seven hundred forty-four".