142953384906381 has 48 divisors (see below), whose sum is σ = 231115300688384. Its totient is φ = 76969802096352.

The previous prime is 142953384906323. The next prime is 142953384906407. The reversal of 142953384906381 is 183609483359241.

It is not a de Polignac number, because 142953384906381 - 2⁹ = 142953384905869 is a prime.

It is a super-2 number, since 2×142953384906381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142953386906381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95287411 + ... + 96776016.

Almost surely, 2^{142953384906381} is an apocalyptic number.

It is an amenable number.

142953384906381 is a deficient number, since it is larger than the sum of its proper divisors (88161915782003).

142953384906381 is a wasteful number, since it uses less digits than its factorization.

142953384906381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192063550 (or 192063527 counting only the distinct ones).

The product of its (nonzero) digits is 134369280, while the sum is 66.

The spelling of 142953384906381 in words is "one hundred forty-two trillion, nine hundred fifty-three billion, three hundred eighty-four million, nine hundred six thousand, three hundred eighty-one".