801845679634 has 8 divisors (see below), whose sum is σ = 1202828332860. Its totient is φ = 400902902016.

The previous prime is 801845679631. The next prime is 801845679637. The reversal of 801845679634 is 436976548108.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (801845679631) and next prime (801845679637).

It can be written as a sum of positive squares in 2 ways, for example, as 793875654009 + 7970025625 = 890997^2 + 89275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×801845679634² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (801845679631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9918579 + ... + 9999094.

Almost surely, 2^801845679634 is an apocalyptic number.

801845679634 is a deficient number, since it is larger than the sum of its proper divisors (400982653226).

801845679634 is a wasteful number, since it uses less digits than its factorization.

801845679634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19937804.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 801845679634 in words is "eight hundred one billion, eight hundred forty-five million, six hundred seventy-nine thousand, six hundred thirty-four".