78298254829 has 2 divisors, whose sum is σ = 78298254830. Its totient is φ = 78298254828.

The previous prime is 78298254787. The next prime is 78298254851. The reversal of 78298254829 is 92845289287.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78067154025 + 231100804 = 279405^2 + 15202^2 .

It is a cyclic number.

It is not a de Polignac number, because 78298254829 - 2⁷ = 78298254701 is a prime.

It is a super-2 number, since 2×78298254829² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78298254329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39149127414 + 39149127415.

It is an arithmetic number, because the mean of its divisors is an integer number (39149127415).

Almost surely, 2^78298254829 is an apocalyptic number.

It is an amenable number.

78298254829 is a deficient number, since it is larger than the sum of its proper divisors (1).

78298254829 is an equidigital number, since it uses as much as digits as its factorization.

78298254829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46448640, while the sum is 64.

The spelling of 78298254829 in words is "seventy-eight billion, two hundred ninety-eight million, two hundred fifty-four thousand, eight hundred twenty-nine".