804414881551 has 4 divisors (see below), whose sum is σ = 805264317432. Its totient is φ = 803565445672.

The previous prime is 804414881533. The next prime is 804414881591. The reversal of 804414881551 is 155188414408.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 804414881551 - 2³⁷ = 666975928079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 804414881495 and 804414881504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804414881591) 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, 424716520 + ... + 424718413.

It is an arithmetic number, because the mean of its divisors is an integer number (201316079358).

Almost surely, 2^804414881551 is an apocalyptic number.

804414881551 is a deficient number, since it is larger than the sum of its proper divisors (849435881).

804414881551 is an equidigital number, since it uses as much as digits as its factorization.

804414881551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849435880.

The product of its (nonzero) digits is 819200, while the sum is 49.

The spelling of 804414881551 in words is "eight hundred four billion, four hundred fourteen million, eight hundred eighty-one thousand, five hundred fifty-one".