78507225775211 has 4 divisors (see below), whose sum is σ = 78509909720424. Its totient is φ = 78504541830000.

The previous prime is 78507225775141. The next prime is 78507225775267. The reversal of 78507225775211 is 11257752270587.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78507225775211 - 2¹⁴ = 78507225758827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78507225775711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341928730 + ... + 1341987231.

It is an arithmetic number, because the mean of its divisors is an integer number (19627477430106).

Almost surely, 2^{78507225775211} is an apocalyptic number.

78507225775211 is a deficient number, since it is larger than the sum of its proper divisors (2683945213).

78507225775211 is a wasteful number, since it uses less digits than its factorization.

78507225775211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683945212.

The product of its (nonzero) digits is 19208000, while the sum is 59.

The spelling of 78507225775211 in words is "seventy-eight trillion, five hundred seven billion, two hundred twenty-five million, seven hundred seventy-five thousand, two hundred eleven".