402126876112 has 80 divisors (see below), whose sum is σ = 853864880400. Its totient is φ = 182340550656.

The previous prime is 402126876079. The next prime is 402126876121. The reversal of 402126876112 is 211678621204.

It can be written as a sum of positive squares in 8 ways, for example, as 1027587136 + 401099288976 = 32056^2 + 633324^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3850764 + ... + 3953812.

It is an arithmetic number, because the mean of its divisors is an integer number (10673311005).

Almost surely, 2^402126876112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402126876112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426932440200).

402126876112 is an abundant number, since it is smaller than the sum of its proper divisors (451738004288).

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

402126876112 is a wasteful number, since it uses less digits than its factorization.

402126876112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103400 (or 103394 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 402126876112 in words is "four hundred two billion, one hundred twenty-six million, eight hundred seventy-six thousand, one hundred twelve".