121849406795 has 4 divisors (see below), whose sum is σ = 146219288160. Its totient is φ = 97479525432.

The previous prime is 121849406761. The next prime is 121849406801. The reversal of 121849406795 is 597604948121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 597604948121 = 5021 ⋅119021101.

It is a cyclic number.

It is not a de Polignac number, because 121849406795 - 2³⁴ = 104669537611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121849406795.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12184940675 + ... + 12184940684.

It is an arithmetic number, because the mean of its divisors is an integer number (36554822040).

Almost surely, 2^121849406795 is an apocalyptic number.

121849406795 is a deficient number, since it is larger than the sum of its proper divisors (24369881365).

121849406795 is an equidigital number, since it uses as much as digits as its factorization.

121849406795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24369881364.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 121849406795 in words is "one hundred twenty-one billion, eight hundred forty-nine million, four hundred six thousand, seven hundred ninety-five".