42781294750 has 32 divisors (see below), whose sum is σ = 84797567712. Its totient is φ = 16105897600.

The previous prime is 42781294727. The next prime is 42781294757. The reversal of 42781294750 is 5749218724.

It is a junction number, because it is equal to n+sod(n) for n = 42781294694 and 42781294703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42781294757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5028844 + ... + 5037343.

It is an arithmetic number, because the mean of its divisors is an integer number (2649923991).

Almost surely, 2^42781294750 is an apocalyptic number.

42781294750 is a deficient number, since it is larger than the sum of its proper divisors (42016272962).

42781294750 is a wasteful number, since it uses less digits than its factorization.

42781294750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066221 (or 10066211 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 42781294750 in words is "forty-two billion, seven hundred eighty-one million, two hundred ninety-four thousand, seven hundred fifty".