78625532747 has 2 divisors, whose sum is σ = 78625532748. Its totient is φ = 78625532746.

The previous prime is 78625532731. The next prime is 78625532813. The reversal of 78625532747 is 74723552687.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78625532747 - 2⁴ = 78625532731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78625532692 and 78625532701.

It is not a weakly prime, because it can be changed into another prime (78625532147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39312766373 + 39312766374.

It is an arithmetic number, because the mean of its divisors is an integer number (39312766374).

Almost surely, 2^78625532747 is an apocalyptic number.

78625532747 is a deficient number, since it is larger than the sum of its proper divisors (1).

78625532747 is an equidigital number, since it uses as much as digits as its factorization.

78625532747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19756800, while the sum is 56.

The spelling of 78625532747 in words is "seventy-eight billion, six hundred twenty-five million, five hundred thirty-two thousand, seven hundred forty-seven".