5569790978 has 4 divisors (see below), whose sum is σ = 8354686470. Its totient is φ = 2784895488.

The previous prime is 5569790959. The next prime is 5569790981. The reversal of 5569790978 is 8790979655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8790979655 = 5 ⋅1758195931.

It can be written as a sum of positive squares in only one way, i.e., 5268872569 + 300918409 = 72587^2 + 17347^2 .

It is a super-2 number, since 2×5569790978² = 62045143077220392968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392447743 + ... + 1392447746.

Almost surely, 2^5569790978 is an apocalyptic number.

5569790978 is a deficient number, since it is larger than the sum of its proper divisors (2784895492).

5569790978 is a wasteful number, since it uses less digits than its factorization.

5569790978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784895491.

The product of its (nonzero) digits is 42865200, while the sum is 65.

The square root of 5569790978 is about 74631.0322721051. The cubic root of 5569790978 is about 1772.6090644361.

The spelling of 5569790978 in words is "five billion, five hundred sixty-nine million, seven hundred ninety thousand, nine hundred seventy-eight".