402142688908 has 24 divisors (see below), whose sum is σ = 722387734992. Its totient is φ = 195775696704.

The previous prime is 402142688887. The next prime is 402142688921. The reversal of 402142688908 is 809886241204.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3633235 + ... + 3742282.

It is an arithmetic number, because the mean of its divisors is an integer number (30099488958).

Almost surely, 2^402142688908 is an apocalyptic number.

It is an amenable number.

402142688908 is a deficient number, since it is larger than the sum of its proper divisors (320245046084).

402142688908 is a wasteful number, since it uses less digits than its factorization.

402142688908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7375881 (or 7375879 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 402142688908 in words is "four hundred two billion, one hundred forty-two million, six hundred eighty-eight thousand, nine hundred eight".