402278698616 has 32 divisors (see below), whose sum is σ = 778753543680. Its totient is φ = 194688345600.

The previous prime is 402278698589. The next prime is 402278698621. The reversal of 402278698616 is 616896872204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4786925 + ... + 4870236.

It is an arithmetic number, because the mean of its divisors is an integer number (24336048240).

Almost surely, 2^402278698616 is an apocalyptic number.

It is an amenable number.

402278698616 is a deficient number, since it is larger than the sum of its proper divisors (376474845064).

402278698616 is a wasteful number, since it uses less digits than its factorization.

402278698616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9657335 (or 9657331 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 402278698616 in words is "four hundred two billion, two hundred seventy-eight million, six hundred ninety-eight thousand, six hundred sixteen".