78576579270001 has 2 divisors, whose sum is σ = 78576579270002. Its totient is φ = 78576579270000.

The previous prime is 78576579269983. The next prime is 78576579270053. The reversal of 78576579270001 is 10007297567587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78518189380401 + 58389889600 = 8861049^2 + 241640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78576579270001 is a prime.

It is not a weakly prime, because it can be changed into another prime (78576579970001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39288289635000 + 39288289635001.

It is an arithmetic number, because the mean of its divisors is an integer number (39288289635001).

Almost surely, 2^{78576579270001} is an apocalyptic number.

It is an amenable number.

78576579270001 is a deficient number, since it is larger than the sum of its proper divisors (1).

78576579270001 is an equidigital number, since it uses as much as digits as its factorization.

78576579270001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51861600, while the sum is 64.

The spelling of 78576579270001 in words is "seventy-eight trillion, five hundred seventy-six billion, five hundred seventy-nine million, two hundred seventy thousand, one".