78363552107 has 2 divisors, whose sum is σ = 78363552108. Its totient is φ = 78363552106.

The previous prime is 78363552097. The next prime is 78363552133. The reversal of 78363552107 is 70125536387.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78363552107 - 2²² = 78359357803 is a prime.

It is a super-2 number, since 2×78363552107² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78363552167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39181776053 + 39181776054.

It is an arithmetic number, because the mean of its divisors is an integer number (39181776054).

Almost surely, 2^78363552107 is an apocalyptic number.

78363552107 is a deficient number, since it is larger than the sum of its proper divisors (1).

78363552107 is an equidigital number, since it uses as much as digits as its factorization.

78363552107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 78363552107 in words is "seventy-eight billion, three hundred sixty-three million, five hundred fifty-two thousand, one hundred seven".