142975549854 has 72 divisors (see below), whose sum is σ = 329343897168. Its totient is φ = 44818375680.

The previous prime is 142975549811. The next prime is 142975549883. The reversal of 142975549854 is 458945579241.

142975549854 is a `hidden beast` number, since 1 + 4 + 2 + 9 + 7 + 5 + 549 + 85 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 142975549791 and 142975549800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6736399 + ... + 6757589.

It is an arithmetic number, because the mean of its divisors is an integer number (4574220794).

Almost surely, 2^142975549854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142975549854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164671948584).

142975549854 is an abundant number, since it is smaller than the sum of its proper divisors (186368347314).

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

142975549854 is a wasteful number, since it uses less digits than its factorization.

142975549854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22530 (or 22510 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 63.

The spelling of 142975549854 in words is "one hundred forty-two billion, nine hundred seventy-five million, five hundred forty-nine thousand, eight hundred fifty-four".