142517018961 has 6 divisors (see below), whose sum is σ = 205857916290. Its totient is φ = 95011345968.

The previous prime is 142517018939. The next prime is 142517018971. The reversal of 142517018961 is 169810715241.

142517018961 is a `hidden beast` number, since 1 + 42 + 517 + 0 + 1 + 8 + 96 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 89775140625 + 52741878336 = 299625^2 + 229656^2 .

It is not a de Polignac number, because 142517018961 - 2⁵ = 142517018929 is a prime.

It is a super-2 number, since 2×142517018961² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142517018971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7917612156 + ... + 7917612173.

It is an arithmetic number, because the mean of its divisors is an integer number (34309652715).

Almost surely, 2^142517018961 is an apocalyptic number.

It is an amenable number.

142517018961 is a deficient number, since it is larger than the sum of its proper divisors (63340897329).

142517018961 is a wasteful number, since it uses less digits than its factorization.

142517018961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15835224335 (or 15835224332 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The spelling of 142517018961 in words is "one hundred forty-two billion, five hundred seventeen million, eighteen thousand, nine hundred sixty-one".