78295293133 has 4 divisors (see below), whose sum is σ = 78631324668. Its totient is φ = 77959261600.

The previous prime is 78295293121. The next prime is 78295293221. The reversal of 78295293133 is 33139259287.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6161151049 + 72134142084 = 78493^2 + 268578^2 .

It is a cyclic number.

It is not a de Polignac number, because 78295293133 - 2¹⁷ = 78295162061 is a prime.

It is a super-2 number, since 2×78295293133² (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 (78295291133) 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 3 ways as a sum of consecutive naturals, for example, 168015418 + ... + 168015883.

It is an arithmetic number, because the mean of its divisors is an integer number (19657831167).

Almost surely, 2^78295293133 is an apocalyptic number.

It is an amenable number.

78295293133 is a deficient number, since it is larger than the sum of its proper divisors (336031535).

78295293133 is a wasteful number, since it uses less digits than its factorization.

78295293133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336031534.

The product of its digits is 2449440, while the sum is 52.

The spelling of 78295293133 in words is "seventy-eight billion, two hundred ninety-five million, two hundred ninety-three thousand, one hundred thirty-three".