142881748646 has 288 divisors, whose sum is σ = 298329937920. Its totient is φ = 50948352000.

The previous prime is 142881748579. The next prime is 142881748649. The reversal of 142881748646 is 646847188241.

It is a happy number.

It is a super-2 number, since 2×142881748646² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142881748649) 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 143 ways as a sum of consecutive naturals, for example, 946236671 + ... + 946236821.

It is an arithmetic number, because the mean of its divisors is an integer number (1035867840).

Almost surely, 2^142881748646 is an apocalyptic number.

142881748646 is an abundant number, since it is smaller than the sum of its proper divisors (155448189274).

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

142881748646 is a wasteful number, since it uses less digits than its factorization.

142881748646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 320 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 59.

The spelling of 142881748646 in words is "one hundred forty-two billion, eight hundred eighty-one million, seven hundred forty-eight thousand, six hundred forty-six".