78148202486433 has 4 divisors (see below), whose sum is σ = 104197603315248. Its totient is φ = 52098801657620.

The previous prime is 78148202486407. The next prime is 78148202486467. The reversal of 78148202486433 is 33468420284187.

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 not a de Polignac number, because 78148202486433 - 2³⁰ = 78147128744609 is a prime.

It is a super-2 number, since 2×78148202486433² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78148202486533) 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, 13024700414403 + ... + 13024700414408.

It is an arithmetic number, because the mean of its divisors is an integer number (26049400828812).

Almost surely, 2^{78148202486433} is an apocalyptic number.

It is an amenable number.

78148202486433 is a deficient number, since it is larger than the sum of its proper divisors (26049400828815).

78148202486433 is a wasteful number, since it uses less digits than its factorization.

78148202486433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26049400828814.

The product of its (nonzero) digits is 49545216, while the sum is 60.

The spelling of 78148202486433 in words is "seventy-eight trillion, one hundred forty-eight billion, two hundred two million, four hundred eighty-six thousand, four hundred thirty-three".