5108661840 has 80 divisors (see below), whose sum is σ = 16768444608. Its totient is φ = 1282172928.

The previous prime is 5108661839. The next prime is 5108661871. The reversal of 5108661840 is 481668015.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 621982 + ... + 630141.

Almost surely, 2^5108661840 is an apocalyptic number.

It is an amenable number.

5108661840 is an abundant number, since it is smaller than the sum of its proper divisors (11659782768).

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

5108661840 is a wasteful number, since it uses less digits than its factorization.

5108661840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252156 (or 1252150 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 5108661840 is about 71474.9035676160. The cubic root of 5108661840 is about 1722.2745552155.

The spelling of 5108661840 in words is "five billion, one hundred eight million, six hundred sixty-one thousand, eight hundred forty".