4078357011978 has 32 divisors (see below), whose sum is σ = 8511527523456. Its totient is φ = 1300319167488.

The previous prime is 4078357011947. The next prime is 4078357011997. The reversal of 4078357011978 is 8791107538704.

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 15 ways as a sum of consecutive naturals, for example, 7146450 + ... + 7696002.

It is an arithmetic number, because the mean of its divisors is an integer number (265985235108).

Almost surely, 2^{4078357011978} is an apocalyptic number.

4078357011978 is an abundant number, since it is smaller than the sum of its proper divisors (4433170511478).

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

4078357011978 is a wasteful number, since it uses less digits than its factorization.

4078357011978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603358.

The product of its (nonzero) digits is 11854080, while the sum is 60.

The spelling of 4078357011978 in words is "four trillion, seventy-eight billion, three hundred fifty-seven million, eleven thousand, nine hundred seventy-eight".