78155143125335 has 16 divisors (see below), whose sum is σ = 94622208264000. Its totient is φ = 61968593262336.

The previous prime is 78155143125289. The next prime is 78155143125341. The reversal of 78155143125335 is 53352134155187.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78155143125335 - 2⁸ = 78155143125079 is a prime.

It is a super-2 number, since 2×78155143125335² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114436595 + ... + 115117524.

It is an arithmetic number, because the mean of its divisors is an integer number (5913888016500).

Almost surely, 2^{78155143125335} is an apocalyptic number.

78155143125335 is a deficient number, since it is larger than the sum of its proper divisors (16467065138665).

78155143125335 is a wasteful number, since it uses less digits than its factorization.

78155143125335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229554730.

The product of its digits is 7560000, while the sum is 53.

The spelling of 78155143125335 in words is "seventy-eight trillion, one hundred fifty-five billion, one hundred forty-three million, one hundred twenty-five thousand, three hundred thirty-five".