78875097601 has 4 divisors (see below), whose sum is σ = 78877658692. Its totient is φ = 78872536512.

The previous prime is 78875097551. The next prime is 78875097619. The reversal of 78875097601 is 10679057887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10679057887 = 823 ⋅12975769.

It can be written as a sum of positive squares in 2 ways, for example, as 65730704400 + 13144393201 = 256380^2 + 114649^2 .

It is a cyclic number.

It is not a de Polignac number, because 78875097601 - 2¹³ = 78875089409 is a prime.

It is a super-3 number, since 3×78875097601³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78875097001) 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, 1233780 + ... + 1296133.

It is an arithmetic number, because the mean of its divisors is an integer number (19719414673).

Almost surely, 2^78875097601 is an apocalyptic number.

It is an amenable number.

78875097601 is a deficient number, since it is larger than the sum of its proper divisors (2561091).

78875097601 is a wasteful number, since it uses less digits than its factorization.

78875097601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561090.

The product of its (nonzero) digits is 5927040, while the sum is 58.

The spelling of 78875097601 in words is "seventy-eight billion, eight hundred seventy-five million, ninety-seven thousand, six hundred one".