78148658180725 has 36 divisors (see below), whose sum is σ = 107068911838560. Its totient is φ = 56115951247200.

The previous prime is 78148658180713. The next prime is 78148658180741. The reversal of 78148658180725 is 52708185684187.

It is not a de Polignac number, because 78148658180725 - 2²⁹ = 78148121309813 is a prime.

It is a super-2 number, since 2×78148658180725² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21050665 + ... + 24483214.

It is an arithmetic number, because the mean of its divisors is an integer number (2974136439960).

Almost surely, 2^{78148658180725} is an apocalyptic number.

It is an amenable number.

78148658180725 is a deficient number, since it is larger than the sum of its proper divisors (28920253657835).

78148658180725 is a wasteful number, since it uses less digits than its factorization.

78148658180725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45534058 (or 45533974 counting only the distinct ones).

The product of its (nonzero) digits is 240844800, while the sum is 70.

The spelling of 78148658180725 in words is "seventy-eight trillion, one hundred forty-eight billion, six hundred fifty-eight million, one hundred eighty thousand, seven hundred twenty-five".