78465742588245 has 32 divisors (see below), whose sum is σ = 125661594516480. Its totient is φ = 41809605770240.

The previous prime is 78465742588229. The next prime is 78465742588361. The reversal of 78465742588245 is 54288524756487.

It is not a de Polignac number, because 78465742588245 - 2⁴ = 78465742588229 is a prime.

It is a super-2 number, since 2×78465742588245² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106546396 + ... + 107280314.

It is an arithmetic number, because the mean of its divisors is an integer number (3926924828640).

Almost surely, 2^{78465742588245} is an apocalyptic number.

It is an amenable number.

78465742588245 is a deficient number, since it is larger than the sum of its proper divisors (47195851928235).

78465742588245 is a wasteful number, since it uses less digits than its factorization.

78465742588245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740525.

The product of its digits is 4816896000, while the sum is 75.

The spelling of 78465742588245 in words is "seventy-eight trillion, four hundred sixty-five billion, seven hundred forty-two million, five hundred eighty-eight thousand, two hundred forty-five".