78203656577841 has 16 divisors (see below), whose sum is σ = 107867750760000. Its totient is φ = 50337687998528.

The previous prime is 78203656577777. The next prime is 78203656577857. The reversal of 78203656577841 is 14877565630287.

It is a cyclic number.

It is not a de Polignac number, because 78203656577841 - 2⁶ = 78203656577777 is a prime.

It is a super-2 number, since 2×78203656577841² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78203656577041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12631210 + ... + 17775116.

It is an arithmetic number, because the mean of its divisors is an integer number (6741734422500).

Almost surely, 2^{78203656577841} is an apocalyptic number.

It is an amenable number.

78203656577841 is a deficient number, since it is larger than the sum of its proper divisors (29664094182159).

78203656577841 is a wasteful number, since it uses less digits than its factorization.

78203656577841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318688.

The product of its (nonzero) digits is 474163200, while the sum is 69.

The spelling of 78203656577841 in words is "seventy-eight trillion, two hundred three billion, six hundred fifty-six million, five hundred seventy-seven thousand, eight hundred forty-one".