505972149140 has 24 divisors (see below), whose sum is σ = 1062564004320. Its totient is φ = 202384575648.

The previous prime is 505972149121. The next prime is 505972149143. The reversal of 505972149140 is 41941279505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505972149143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805691 + ... + 1288829.

It is an arithmetic number, because the mean of its divisors is an integer number (44273500180).

Almost surely, 2^505972149140 is an apocalyptic number.

It is an amenable number.

505972149140 is an abundant number, since it is smaller than the sum of its proper divisors (556591855180).

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

505972149140 is a wasteful number, since it uses less digits than its factorization.

505972149140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535511 (or 535509 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 505972149140 in words is "five hundred five billion, nine hundred seventy-two million, one hundred forty-nine thousand, one hundred forty".