78141024011 has 4 divisors (see below), whose sum is σ = 78142784952. Its totient is φ = 78139263072.

The previous prime is 78141024007. The next prime is 78141024023. The reversal of 78141024011 is 11042014187.

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 78141024011 - 2² = 78141024007 is a prime.

It is a super-2 number, since 2×78141024011² (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 (78141024911) 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, 812141 + ... + 903246.

It is an arithmetic number, because the mean of its divisors is an integer number (19535696238).

Almost surely, 2^78141024011 is an apocalyptic number.

78141024011 is a deficient number, since it is larger than the sum of its proper divisors (1760941).

78141024011 is a wasteful number, since it uses less digits than its factorization.

78141024011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760940.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 78141024011 its reverse (11042014187), we get a palindrome (89183038198).

The spelling of 78141024011 in words is "seventy-eight billion, one hundred forty-one million, twenty-four thousand, eleven".