3212319978 has 64 divisors (see below), whose sum is σ = 8513003520. Its totient is φ = 877898736.

The previous prime is 3212319977. The next prime is 3212319989. The reversal of 3212319978 is 8799132123.

3212319978 is a `hidden beast` number, since 321 + 2 + 319 + 9 + 7 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (3212319977) 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 31 ways as a sum of consecutive naturals, for example, 176050 + ... + 193437.

It is an arithmetic number, because the mean of its divisors is an integer number (133015680).

Almost surely, 2^3212319978 is an apocalyptic number.

3212319978 is an abundant number, since it is smaller than the sum of its proper divisors (5300683542).

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

3212319978 is a wasteful number, since it uses less digits than its factorization.

3212319978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369528 (or 369522 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 3212319978 is about 56677.3321355196. The cubic root of 3212319978 is about 1475.5013104767.

The spelling of 3212319978 in words is "three billion, two hundred twelve million, three hundred nineteen thousand, nine hundred seventy-eight".