78700048897 has 4 divisors (see below), whose sum is σ = 83329463556. Its totient is φ = 74070634240.

The previous prime is 78700048891. The next prime is 78700048961. The reversal of 78700048897 is 79884000787.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25590080961 + 53109967936 = 159969^2 + 230456^2 .

It is a cyclic number.

It is not a de Polignac number, because 78700048897 - 2⁷ = 78700048769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78700048891) 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, 2314707304 + ... + 2314707337.

It is an arithmetic number, because the mean of its divisors is an integer number (20832365889).

Almost surely, 2^78700048897 is an apocalyptic number.

It is an amenable number.

78700048897 is a deficient number, since it is larger than the sum of its proper divisors (4629414659).

78700048897 is a wasteful number, since it uses less digits than its factorization.

78700048897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629414658.

The product of its (nonzero) digits is 6322176, while the sum is 58.

The spelling of 78700048897 in words is "seventy-eight billion, seven hundred million, forty-eight thousand, eight hundred ninety-seven".