42549749863936 has 80 divisors (see below), whose sum is σ = 100295839226880. Its totient is φ = 17647361648640.

The previous prime is 42549749863931. The next prime is 42549749863963. The reversal of 42549749863936 is 63936894794524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42549749863931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191375026 + ... + 191597233.

It is an arithmetic number, because the mean of its divisors is an integer number (1253697990336).

Almost surely, 2^{42549749863936} is an apocalyptic number.

It is an amenable number.

42549749863936 is an abundant number, since it is smaller than the sum of its proper divisors (57746089362944).

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

42549749863936 is an equidigital number, since it uses as much as digits as its factorization.

42549749863936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382972315 (or 382972299 counting only the distinct ones).

The product of its digits is 8465264640, while the sum is 79.

The spelling of 42549749863936 in words is "forty-two trillion, five hundred forty-nine billion, seven hundred forty-nine million, eight hundred sixty-three thousand, nine hundred thirty-six".