142536578652 has 108 divisors (see below), whose sum is σ = 392734493424. Its totient is φ = 43566681600.

The previous prime is 142536578647. The next prime is 142536578669. The reversal of 142536578652 is 256875635241.

142536578652 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 3 + 6 + 578 + 65 + 2 = 666.

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, 841108 + ... + 996260.

Almost surely, 2^142536578652 is an apocalyptic number.

142536578652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142536578652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196367246712).

142536578652 is an abundant number, since it is smaller than the sum of its proper divisors (250197914772).

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

142536578652 is a wasteful number, since it uses less digits than its factorization.

142536578652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155340 (or 155322 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The spelling of 142536578652 in words is "one hundred forty-two billion, five hundred thirty-six million, five hundred seventy-eight thousand, six hundred fifty-two".