42512212782 has 48 divisors (see below), whose sum is σ = 99768640608. Its totient is φ = 13005057600.

The previous prime is 42512212753. The next prime is 42512212801. The reversal of 42512212782 is 28721221524.

It is a happy number.

42512212782 is a `hidden beast` number, since 42 + 512 + 2 + 1 + 27 + 82 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484594 + ... + 565557.

It is an arithmetic number, because the mean of its divisors is an integer number (2078513346).

Almost surely, 2^42512212782 is an apocalyptic number.

42512212782 is an abundant number, since it is smaller than the sum of its proper divisors (57256427826).

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

42512212782 is a wasteful number, since it uses less digits than its factorization.

42512212782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050345 (or 1050342 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The spelling of 42512212782 in words is "forty-two billion, five hundred twelve million, two hundred twelve thousand, seven hundred eighty-two".