5007778906 has 16 divisors (see below), whose sum is σ = 8091657000. Its totient is φ = 2310663168.

The previous prime is 5007778883. The next prime is 5007778907. The reversal of 5007778906 is 6098777005.

It can be written as a sum of positive squares in 4 ways, for example, as 2731630225 + 2276148681 = 52265^2 + 47709^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5007778906.

It is not an unprimeable number, because it can be changed into a prime (5007778907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81490 + ... + 129058.

Almost surely, 2^5007778906 is an apocalyptic number.

5007778906 is a deficient number, since it is larger than the sum of its proper divisors (3083878094).

5007778906 is a wasteful number, since it uses less digits than its factorization.

5007778906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51633.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 5007778906 is about 70765.6619131059. The cubic root of 5007778906 is about 1710.8622700039.

The spelling of 5007778906 in words is "five billion, seven million, seven hundred seventy-eight thousand, nine hundred six".