402871626798 has 32 divisors (see below), whose sum is σ = 834828089760. Its totient is φ = 129457520640.

The previous prime is 402871626791. The next prime is 402871626811. The reversal of 402871626798 is 897626178204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402871626791) 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 15 ways as a sum of consecutive naturals, for example, 1694515 + ... + 1917582.

It is an arithmetic number, because the mean of its divisors is an integer number (26088377805).

Almost surely, 2^402871626798 is an apocalyptic number.

402871626798 is an abundant number, since it is smaller than the sum of its proper divisors (431956462962).

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

402871626798 is a wasteful number, since it uses less digits than its factorization.

402871626798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612772.

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 402871626798 in words is "four hundred two billion, eight hundred seventy-one million, six hundred twenty-six thousand, seven hundred ninety-eight".