52345646140 has 12 divisors (see below), whose sum is σ = 109925856936. Its totient is φ = 20938258448.

The previous prime is 52345646131. The next prime is 52345646147. The reversal of 52345646140 is 4164654325.

It is a junction number, because it is equal to n+sod(n) for n = 52345646093 and 52345646102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52345646147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308641134 + ... + 1308641173.

It is an arithmetic number, because the mean of its divisors is an integer number (9160488078).

Almost surely, 2^52345646140 is an apocalyptic number.

It is an amenable number.

52345646140 is an abundant number, since it is smaller than the sum of its proper divisors (57580210796).

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

52345646140 is a wasteful number, since it uses less digits than its factorization.

52345646140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617282316 (or 2617282314 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 52345646140 in words is "fifty-two billion, three hundred forty-five million, six hundred forty-six thousand, one hundred forty".