142922979648 has 168 divisors, whose sum is σ = 413781544800. Its totient is φ = 47164363776.

The previous prime is 142922979613. The next prime is 142922979671. The reversal of 142922979648 is 846979229241.

142922979648 is a `hidden beast` number, since 14 + 292 + 297 + 9 + 6 + 48 = 666.

It is a super-2 number, since 2×142922979648² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 25253043 + ... + 25258701.

Almost surely, 2^142922979648 is an apocalyptic number.

142922979648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142922979648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206890772400).

142922979648 is an abundant number, since it is smaller than the sum of its proper divisors (270858565152).

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

142922979648 is a wasteful number, since it uses less digits than its factorization.

142922979648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109 (or 6096 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The spelling of 142922979648 in words is "one hundred forty-two billion, nine hundred twenty-two million, nine hundred seventy-nine thousand, six hundred forty-eight".