78328290941 has 4 divisors (see below), whose sum is σ = 81733868832. Its totient is φ = 74922713052.

The previous prime is 78328290917. The next prime is 78328290983. The reversal of 78328290941 is 14909282387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78328290941 is a prime.

It is a super-2 number, since 2×78328290941² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78328290641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1702788911 + ... + 1702788956.

It is an arithmetic number, because the mean of its divisors is an integer number (20433467208).

Almost surely, 2^78328290941 is an apocalyptic number.

It is an amenable number.

78328290941 is a deficient number, since it is larger than the sum of its proper divisors (3405577891).

78328290941 is a wasteful number, since it uses less digits than its factorization.

78328290941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405577890.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 78328290941 in words is "seventy-eight billion, three hundred twenty-eight million, two hundred ninety thousand, nine hundred forty-one".