142640974436 has 24 divisors (see below), whose sum is σ = 257692512000. Its totient is φ = 69014872800.

The previous prime is 142640974429. The next prime is 142640974457. The reversal of 142640974436 is 634479046241.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2168471 + ... + 2233281.

It is an arithmetic number, because the mean of its divisors is an integer number (10737188000).

Almost surely, 2^142640974436 is an apocalyptic number.

It is an amenable number.

142640974436 is a deficient number, since it is larger than the sum of its proper divisors (115051537564).

142640974436 is a wasteful number, since it uses less digits than its factorization.

142640974436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82595 (or 82593 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 142640974436 in words is "one hundred forty-two billion, six hundred forty million, nine hundred seventy-four thousand, four hundred thirty-six".