42931749782 has 32 divisors (see below), whose sum is σ = 72204410880. Its totient is φ = 19025193600.

The previous prime is 42931749761. The next prime is 42931749793. The reversal of 42931749782 is 28794713924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91094 + ... + 306857.

It is an arithmetic number, because the mean of its divisors is an integer number (2256387840).

Almost surely, 2^42931749782 is an apocalyptic number.

42931749782 is a deficient number, since it is larger than the sum of its proper divisors (29272661098).

42931749782 is a wasteful number, since it uses less digits than its factorization.

42931749782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398156.

The product of its digits is 6096384, while the sum is 56.

The spelling of 42931749782 in words is "forty-two billion, nine hundred thirty-one million, seven hundred forty-nine thousand, seven hundred eighty-two".