78106053611 has 4 divisors (see below), whose sum is σ = 78110305224. Its totient is φ = 78101802000.

The previous prime is 78106053517. The next prime is 78106053643. The reversal of 78106053611 is 11635060187.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11635060187 = 523 ⋅22246769.

It is a cyclic number.

It is not a de Polignac number, because 78106053611 - 2²² = 78101859307 is a prime.

It is a super-2 number, since 2×78106053611² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78106053661) 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, 2098130 + ... + 2135031.

It is an arithmetic number, because the mean of its divisors is an integer number (19527576306).

Almost surely, 2^78106053611 is an apocalyptic number.

78106053611 is a deficient number, since it is larger than the sum of its proper divisors (4251613).

78106053611 is a wasteful number, since it uses less digits than its factorization.

78106053611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251612.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 78106053611 in words is "seventy-eight billion, one hundred six million, fifty-three thousand, six hundred eleven".