142226628777 has 24 divisors (see below), whose sum is σ = 224539960320. Its totient is φ = 86361517440.

The previous prime is 142226628769. The next prime is 142226628809. The reversal of 142226628777 is 777826622241.

142226628777 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 2 + 6 + 628 + 7 + 7 + 7 = 666.

It is not a de Polignac number, because 142226628777 - 2³ = 142226628769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142226628707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14988577 + ... + 14998062.

It is an arithmetic number, because the mean of its divisors is an integer number (9355831680).

Almost surely, 2^142226628777 is an apocalyptic number.

142226628777 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

142226628777 is a deficient number, since it is larger than the sum of its proper divisors (82313331543).

142226628777 is a wasteful number, since it uses less digits than its factorization.

142226628777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29986693 (or 29986690 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 54.

The spelling of 142226628777 in words is "one hundred forty-two billion, two hundred twenty-six million, six hundred twenty-eight thousand, seven hundred seventy-seven".