401675579826 has 8 divisors (see below), whose sum is σ = 803351159664. Its totient is φ = 133891859940.

The previous prime is 401675579821. The next prime is 401675579857. The reversal of 401675579826 is 628975576104.

It is a happy number.

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

401675579826 is an admirable number.

It is a super-2 number, since 2×401675579826² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401675579826.

It is not an unprimeable number, because it can be changed into a prime (401675579821) 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, 33472964980 + ... + 33472964991.

It is an arithmetic number, because the mean of its divisors is an integer number (100418894958).

Almost surely, 2^401675579826 is an apocalyptic number.

401675579826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401675579826 is a wasteful number, since it uses less digits than its factorization.

401675579826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66945929976.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 401675579826 in words is "four hundred one billion, six hundred seventy-five million, five hundred seventy-nine thousand, eight hundred twenty-six".