5209105788 has 30 divisors (see below), whose sum is σ = 13617632336. Its totient is φ = 1736368488.

The previous prime is 5209105771. The next prime is 5209105807. The reversal of 5209105788 is 8875019025.

It is a happy number.

It is a super-2 number, since 2×5209105788² = 54269566221150201888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 8038420 + ... + 8039067.

Almost surely, 2^5209105788 is an apocalyptic number.

It is an amenable number.

5209105788 is an abundant number, since it is smaller than the sum of its proper divisors (8408526548).

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

5209105788 is a wasteful number, since it uses less digits than its factorization.

5209105788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16077503 (or 16077492 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 5209105788 is about 72174.1351732045. The cubic root of 5209105788 is about 1733.4888760648.

The spelling of 5209105788 in words is "five billion, two hundred nine million, one hundred five thousand, seven hundred eighty-eight".