78328290942 has 48 divisors (see below), whose sum is σ = 196030169712. Its totient is φ = 22339618560.

The previous prime is 78328290917. The next prime is 78328290983. The reversal of 78328290942 is 24909282387.

It is a happy number.

It is a super-2 number, since 2×78328290942² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11631853 + ... + 11638584.

It is an arithmetic number, because the mean of its divisors is an integer number (4083961869).

Almost surely, 2^78328290942 is an apocalyptic number.

78328290942 is an abundant number, since it is smaller than the sum of its proper divisors (117701878770).

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

78328290942 is a wasteful number, since it uses less digits than its factorization.

78328290942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23270473 (or 23270470 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 78328290942 in words is "seventy-eight billion, three hundred twenty-eight million, two hundred ninety thousand, nine hundred forty-two".