42840769617564 has 24 divisors (see below), whose sum is σ = 103186369832448. Its totient is φ = 13819603102320.

The previous prime is 42840769617511. The next prime is 42840769617619. The reversal of 42840769617564 is 46571696704824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57581679222 + ... + 57581679965.

It is an arithmetic number, because the mean of its divisors is an integer number (4299432076352).

Almost surely, 2^{42840769617564} is an apocalyptic number.

It is an amenable number.

42840769617564 is an abundant number, since it is smaller than the sum of its proper divisors (60345600214884).

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

42840769617564 is a wasteful number, since it uses less digits than its factorization.

42840769617564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115163359225 (or 115163359223 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 69.

The spelling of 42840769617564 in words is "forty-two trillion, eight hundred forty billion, seven hundred sixty-nine million, six hundred seventeen thousand, five hundred sixty-four".