343639636545672 has 112 divisors (see below), whose sum is σ = 972994517502000. Its totient is φ = 113722469379936.

The previous prime is 343639636545641. The next prime is 343639636545769. The reversal of 343639636545672 is 276545636936343.

343639636545672 is a `hidden beast` number, since 3 + 4 + 3 + 6 + 3 + 9 + 6 + 3 + 6 + 54 + 567 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 343639636545672.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 211143022 + ... + 212764317.

It is an arithmetic number, because the mean of its divisors is an integer number (8687451049125).

Almost surely, 2^{343639636545672} is an apocalyptic number.

It is an amenable number.

343639636545672 is an abundant number, since it is smaller than the sum of its proper divisors (629354880956328).

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

343639636545672 is a wasteful number, since it uses less digits than its factorization.

343639636545672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423907502 (or 423907483 counting only the distinct ones).

The product of its digits is 5290790400, while the sum is 72.

The spelling of 343639636545672 in words is "three hundred forty-three trillion, six hundred thirty-nine billion, six hundred thirty-six million, five hundred forty-five thousand, six hundred seventy-two".