801775372147 has 4 divisors (see below), whose sum is σ = 836635170960. Its totient is φ = 766915573336.

The previous prime is 801775372109. The next prime is 801775372187. The reversal of 801775372147 is 741273577108.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801775372147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 801775372094 and 801775372103.

It is not an unprimeable number, because it can be changed into a prime (801775372187) 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, 17429899372 + ... + 17429899417.

It is an arithmetic number, because the mean of its divisors is an integer number (209158792740).

Almost surely, 2^801775372147 is an apocalyptic number.

801775372147 is a deficient number, since it is larger than the sum of its proper divisors (34859798813).

801775372147 is a wasteful number, since it uses less digits than its factorization.

801775372147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34859798812.

The product of its (nonzero) digits is 2304960, while the sum is 52.

The spelling of 801775372147 in words is "eight hundred one billion, seven hundred seventy-five million, three hundred seventy-two thousand, one hundred forty-seven".