800742761628 has 24 divisors (see below), whose sum is σ = 1873408902288. Its totient is φ = 266198664576.

The previous prime is 800742761573. The next prime is 800742761639. The reversal of 800742761628 is 826167247008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89444001 + ... + 89452952.

It is an arithmetic number, because the mean of its divisors is an integer number (78058704262).

Almost surely, 2^800742761628 is an apocalyptic number.

It is an amenable number.

800742761628 is an abundant number, since it is smaller than the sum of its proper divisors (1072666140660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800742761628 is a wasteful number, since it uses less digits than its factorization.

800742761628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178897333 (or 178897331 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 800742761628 in words is "eight hundred billion, seven hundred forty-two million, seven hundred sixty-one thousand, six hundred twenty-eight".