78767229031 has 2 divisors, whose sum is σ = 78767229032. Its totient is φ = 78767229030.

The previous prime is 78767229011. The next prime is 78767229127. The reversal of 78767229031 is 13092276787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78767229031 - 2¹³ = 78767220839 is a prime.

It is a super-2 number, since 2×78767229031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78767229031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78767229011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39383614515 + 39383614516.

It is an arithmetic number, because the mean of its divisors is an integer number (39383614516).

Almost surely, 2^78767229031 is an apocalyptic number.

78767229031 is a deficient number, since it is larger than the sum of its proper divisors (1).

78767229031 is an equidigital number, since it uses as much as digits as its factorization.

78767229031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 78767229031 in words is "seventy-eight billion, seven hundred sixty-seven million, two hundred twenty-nine thousand, thirty-one".