78774812523601 has 8 divisors (see below), whose sum is σ = 79274051331264. Its totient is φ = 78275768322960.

The previous prime is 78774812523599. The next prime is 78774812523721. The reversal of 78774812523601 is 10632521847787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78774812523601 - 2¹ = 78774812523599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78774812523601.

It is not an unprimeable number, because it can be changed into a prime (78774812523301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47839570 + ... + 49458811.

It is an arithmetic number, because the mean of its divisors is an integer number (9909256416408).

Almost surely, 2^{78774812523601} is an apocalyptic number.

It is an amenable number.

78774812523601 is a deficient number, since it is larger than the sum of its proper divisors (499238807663).

78774812523601 is a wasteful number, since it uses less digits than its factorization.

78774812523601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97303511.

The product of its (nonzero) digits is 31610880, while the sum is 61.

The spelling of 78774812523601 in words is "seventy-eight trillion, seven hundred seventy-four billion, eight hundred twelve million, five hundred twenty-three thousand, six hundred one".