78271270793 has 4 divisors (see below), whose sum is σ = 80796150528. Its totient is φ = 75746391060.

The previous prime is 78271270757. The next prime is 78271270871. The reversal of 78271270793 is 39707217287.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78271270793 - 2⁶ = 78271270729 is a prime.

It is a super-2 number, since 2×78271270793² (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 (78271270723) 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, 1262439821 + ... + 1262439882.

It is an arithmetic number, because the mean of its divisors is an integer number (20199037632).

Almost surely, 2^78271270793 is an apocalyptic number.

It is an amenable number.

78271270793 is a deficient number, since it is larger than the sum of its proper divisors (2524879735).

78271270793 is a wasteful number, since it uses less digits than its factorization.

78271270793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524879734.

The product of its (nonzero) digits is 2074464, while the sum is 53.

The spelling of 78271270793 in words is "seventy-eight billion, two hundred seventy-one million, two hundred seventy thousand, seven hundred ninety-three".