4355697978 has 48 divisors (see below), whose sum is σ = 10276624800. Its totient is φ = 1328050080.

The previous prime is 4355697961. The next prime is 4355698021. The reversal of 4355697978 is 8797965534.

4355697978 is a `hidden beast` number, since 4 + 3 + 556 + 9 + 7 + 9 + 78 = 666.

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 23 ways as a sum of consecutive naturals, for example, 209668 + ... + 229503.

It is an arithmetic number, because the mean of its divisors is an integer number (214096350).

Almost surely, 2^4355697978 is an apocalyptic number.

4355697978 is an abundant number, since it is smaller than the sum of its proper divisors (5920926822).

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

4355697978 is a wasteful number, since it uses less digits than its factorization.

4355697978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439227 (or 439224 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 63.

The square root of 4355697978 is about 65997.7119148838. The cubic root of 4355697978 is about 1633.1243446151.

The spelling of 4355697978 in words is "four billion, three hundred fifty-five million, six hundred ninety-seven thousand, nine hundred seventy-eight".