78148555963 has 2 divisors, whose sum is σ = 78148555964. Its totient is φ = 78148555962.

The previous prime is 78148555937. The next prime is 78148555973. The reversal of 78148555963 is 36955584187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78148555963 - 2¹⁷ = 78148424891 is a prime.

It is a super-2 number, since 2×78148555963² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78148555973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39074277981 + 39074277982.

It is an arithmetic number, because the mean of its divisors is an integer number (39074277982).

Almost surely, 2^78148555963 is an apocalyptic number.

78148555963 is a deficient number, since it is larger than the sum of its proper divisors (1).

78148555963 is an equidigital number, since it uses as much as digits as its factorization.

78148555963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288000, while the sum is 61.

The spelling of 78148555963 in words is "seventy-eight billion, one hundred forty-eight million, five hundred fifty-five thousand, nine hundred sixty-three".