6736209840 has 120 divisors (see below), whose sum is σ = 23813141040. Its totient is φ = 1701775872.

The previous prime is 6736209719. The next prime is 6736209853. The reversal of 6736209840 is 489026376.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232527 + ... + 259886.

It is an arithmetic number, because the mean of its divisors is an integer number (198442842).

Almost surely, 2^6736209840 is an apocalyptic number.

6736209840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6736209840 is an abundant number, since it is smaller than the sum of its proper divisors (17076931200).

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

6736209840 is a wasteful number, since it uses less digits than its factorization.

6736209840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492451 (or 492442 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 6736209840 is about 82074.4164767560. The cubic root of 6736209840 is about 1888.5936964513.

The spelling of 6736209840 in words is "six billion, seven hundred thirty-six million, two hundred nine thousand, eight hundred forty".