142777238660 has 48 divisors (see below), whose sum is σ = 342687910656. Its totient is φ = 48948976512.

The previous prime is 142777238651. The next prime is 142777238689. The reversal of 142777238660 is 66832777241.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3239129 + ... + 3282911.

It is an arithmetic number, because the mean of its divisors is an integer number (7139331472).

Almost surely, 2^142777238660 is an apocalyptic number.

142777238660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142777238660 is an abundant number, since it is smaller than the sum of its proper divisors (199910671996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142777238660 is a wasteful number, since it uses less digits than its factorization.

142777238660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67092 (or 67090 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 53.

The spelling of 142777238660 in words is "one hundred forty-two billion, seven hundred seventy-seven million, two hundred thirty-eight thousand, six hundred sixty".