142320438922650 has 192 divisors, whose sum is σ = 370195411691520. Its totient is φ = 36115500960000.

The previous prime is 142320438922643. The next prime is 142320438922691. The reversal of 142320438922650 is 56229834023241.

It is a junction number, because it is equal to n+sod(n) for n = 142320438922593 and 142320438922602.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1029366025 + ... + 1029504275.

It is an arithmetic number, because the mean of its divisors is an integer number (1928101102560).

Almost surely, 2^{142320438922650} is an apocalyptic number.

142320438922650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142320438922650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185097705845760).

142320438922650 is an abundant number, since it is smaller than the sum of its proper divisors (227874972768870).

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

142320438922650 is a wasteful number, since it uses less digits than its factorization.

142320438922650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139821 (or 139816 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 142320438922650 in words is "one hundred forty-two trillion, three hundred twenty billion, four hundred thirty-eight million, nine hundred twenty-two thousand, six hundred fifty".