78283229430642 has 16 divisors (see below), whose sum is σ = 157308479995872. Its totient is φ = 25970739621120.

The previous prime is 78283229430617. The next prime is 78283229430649. The reversal of 78283229430642 is 24603492238287.

It is a super-2 number, since 2×78283229430642² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78283229430649) 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, 30917545903 + ... + 30917548434.

It is an arithmetic number, because the mean of its divisors is an integer number (9831779999742).

Almost surely, 2^{78283229430642} is an apocalyptic number.

78283229430642 is an abundant number, since it is smaller than the sum of its proper divisors (79025250565230).

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

78283229430642 is a wasteful number, since it uses less digits than its factorization.

78283229430642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61835094553.

The product of its (nonzero) digits is 55738368, while the sum is 60.

The spelling of 78283229430642 in words is "seventy-eight trillion, two hundred eighty-three billion, two hundred twenty-nine million, four hundred thirty thousand, six hundred forty-two".