6512673240 has 128 divisors (see below), whose sum is σ = 21741696000. Its totient is φ = 1734090624.

The previous prime is 6512673229. The next prime is 6512673247. The reversal of 6512673240 is 423762156.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6512673195 and 6512673204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512673247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 772327 + ... + 780713.

It is an arithmetic number, because the mean of its divisors is an integer number (169857000).

Almost surely, 2^6512673240 is an apocalyptic number.

6512673240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6512673240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10870848000).

6512673240 is an abundant number, since it is smaller than the sum of its proper divisors (15229022760).

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

6512673240 is a wasteful number, since it uses less digits than its factorization.

6512673240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9126 (or 9116 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 6512673240 is about 80701.1353079992. The cubic root of 6512673240 is about 1867.4676886718.

The spelling of 6512673240 in words is "six billion, five hundred twelve million, six hundred seventy-three thousand, two hundred forty".