52120135446 has 48 divisors (see below), whose sum is σ = 106518029520. Its totient is φ = 17001653760.

The previous prime is 52120135391. The next prime is 52120135447. The reversal of 52120135446 is 64453102125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52120135447) 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, 6889506 + ... + 6897066.

It is an arithmetic number, because the mean of its divisors is an integer number (2219125615).

Almost surely, 2^52120135446 is an apocalyptic number.

52120135446 is an abundant number, since it is smaller than the sum of its proper divisors (54397894074).

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

52120135446 is a wasteful number, since it uses less digits than its factorization.

52120135446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081 (or 8028 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 52120135446 in words is "fifty-two billion, one hundred twenty million, one hundred thirty-five thousand, four hundred forty-six".