142894465506 has 48 divisors (see below), whose sum is σ = 341552647800. Its totient is φ = 42895146240.

The previous prime is 142894465501. The next prime is 142894465507. The reversal of 142894465506 is 605564498241.

It is a happy number.

142894465506 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 94 + 46 + 5 + 506 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 107056568025 + 35837897481 = 327195^2 + 189309^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142894465501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7437481 + ... + 7456668.

Almost surely, 2^142894465506 is an apocalyptic number.

142894465506 is an abundant number, since it is smaller than the sum of its proper divisors (198658182294).

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

142894465506 is a wasteful number, since it uses less digits than its factorization.

142894465506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14894211 (or 14894208 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

It can be divided in two parts, 142894 and 465506, that added together give a square (608400 = 780²).

The spelling of 142894465506 in words is "one hundred forty-two billion, eight hundred ninety-four million, four hundred sixty-five thousand, five hundred six".