78501533022123 has 8 divisors (see below), whose sum is σ = 104668754684928. Its totient is φ = 52334333353704.

The previous prime is 78501533022097. The next prime is 78501533022169. The reversal of 78501533022123 is 32122033510587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78501533022123 - 2⁵ = 78501533022091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78501533022173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6687786 + ... + 14203152.

It is an arithmetic number, because the mean of its divisors is an integer number (13083594335616).

Almost surely, 2^{78501533022123} is an apocalyptic number.

78501533022123 is a deficient number, since it is larger than the sum of its proper divisors (26167221662805).

78501533022123 is a wasteful number, since it uses less digits than its factorization.

78501533022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10997193.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 78501533022123 in words is "seventy-eight trillion, five hundred one billion, five hundred thirty-three million, twenty-two thousand, one hundred twenty-three".