78360275525 has 12 divisors (see below), whose sum is σ = 111047704992. Its totient is φ = 53732760240.

The previous prime is 78360275503. The next prime is 78360275537. The reversal of 78360275525 is 52557206387.

It is a de Polignac number, because none of the positive numbers 2^k-78360275525 is a prime.

It is a super-2 number, since 2×78360275525² (a number of 23 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 11 ways as a sum of consecutive naturals, for example, 223886327 + ... + 223886676.

It is an arithmetic number, because the mean of its divisors is an integer number (9253975416).

Almost surely, 2^78360275525 is an apocalyptic number.

It is an amenable number.

78360275525 is a deficient number, since it is larger than the sum of its proper divisors (32687429467).

78360275525 is a wasteful number, since it uses less digits than its factorization.

78360275525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447773020 (or 447773015 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 50.

The spelling of 78360275525 in words is "seventy-eight billion, three hundred sixty million, two hundred seventy-five thousand, five hundred twenty-five".