396280885555 has 4 divisors (see below), whose sum is σ = 475537062672. Its totient is φ = 317024708440.

The previous prime is 396280885531. The next prime is 396280885579. The reversal of 396280885555 is 555588082693.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (396280885531) and next prime (396280885579).

It is not a de Polignac number, because 396280885555 - 2¹⁵ = 396280852787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39628088551 + ... + 39628088560.

It is an arithmetic number, because the mean of its divisors is an integer number (118884265668).

Almost surely, 2^396280885555 is an apocalyptic number.

396280885555 is a deficient number, since it is larger than the sum of its proper divisors (79256177117).

396280885555 is an equidigital number, since it uses as much as digits as its factorization.

396280885555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79256177116.

The product of its (nonzero) digits is 103680000, while the sum is 64.

The spelling of 396280885555 in words is "three hundred ninety-six billion, two hundred eighty million, eight hundred eighty-five thousand, five hundred fifty-five".