78924348001331 has 6 divisors (see below), whose sum is σ = 91809955838340. Its totient is φ = 67649441143956.

The previous prime is 78924348001273. The next prime is 78924348001423. The reversal of 78924348001331 is 13310084342987.

It is not a de Polignac number, because 78924348001331 - 2¹⁴ = 78924347984947 is a prime.

It is a super-2 number, since 2×78924348001331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78927348001331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 805350489761 + ... + 805350489858.

It is an arithmetic number, because the mean of its divisors is an integer number (15301659306390).

Almost surely, 2^{78924348001331} is an apocalyptic number.

78924348001331 is a deficient number, since it is larger than the sum of its proper divisors (12885607837009).

78924348001331 is a wasteful number, since it uses less digits than its factorization.

78924348001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610700979633 (or 1610700979626 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 78924348001331 in words is "seventy-eight trillion, nine hundred twenty-four billion, three hundred forty-eight million, one thousand, three hundred thirty-one".