5642111049678 has 64 divisors (see below), whose sum is σ = 12781711296000. Its totient is φ = 1844306563392.

The previous prime is 5642111049671. The next prime is 5642111049683. The reversal of 5642111049678 is 8769401112465.

5642111049678 is a `hidden beast` number, since 5 + 6 + 421 + 110 + 49 + 67 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642111049671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861850 + ... + 3467997.

It is an arithmetic number, because the mean of its divisors is an integer number (199714239000).

Almost surely, 2^{5642111049678} is an apocalyptic number.

5642111049678 is an abundant number, since it is smaller than the sum of its proper divisors (7139600246322).

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

5642111049678 is a wasteful number, since it uses less digits than its factorization.

5642111049678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330326 (or 4330320 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 5642111049678 in words is "five trillion, six hundred forty-two billion, one hundred eleven million, forty-nine thousand, six hundred seventy-eight".