213325496778 has 64 divisors (see below), whose sum is σ = 466585878528. Its totient is φ = 64729916160.

The previous prime is 213325496759. The next prime is 213325496807. The reversal of 213325496778 is 877694523312.

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 31 ways as a sum of consecutive naturals, for example, 5821951 + ... + 5858477.

It is an arithmetic number, because the mean of its divisors is an integer number (7290404352).

Almost surely, 2^213325496778 is an apocalyptic number.

213325496778 is an abundant number, since it is smaller than the sum of its proper divisors (253260381750).

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

213325496778 is a wasteful number, since it uses less digits than its factorization.

213325496778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38427.

The product of its digits is 15240960, while the sum is 57.

The spelling of 213325496778 in words is "two hundred thirteen billion, three hundred twenty-five million, four hundred ninety-six thousand, seven hundred seventy-eight".