78153536147 has 2 divisors, whose sum is σ = 78153536148. Its totient is φ = 78153536146.

The previous prime is 78153536129. The next prime is 78153536189. The reversal of 78153536147 is 74163535187.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78153536147 - 2⁸ = 78153535891 is a prime.

It is a super-2 number, since 2×78153536147² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78153536095 and 78153536104.

It is not a weakly prime, because it can be changed into another prime (78153536647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39076768073 + 39076768074.

It is an arithmetic number, because the mean of its divisors is an integer number (39076768074).

Almost surely, 2^78153536147 is an apocalyptic number.

78153536147 is a deficient number, since it is larger than the sum of its proper divisors (1).

78153536147 is an equidigital number, since it uses as much as digits as its factorization.

78153536147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 50.

The spelling of 78153536147 in words is "seventy-eight billion, one hundred fifty-three million, five hundred thirty-six thousand, one hundred forty-seven".