6506309740 has 48 divisors (see below), whose sum is σ = 15647111424. Its totient is φ = 2226168000.

The previous prime is 6506309737. The next prime is 6506309749. The reversal of 6506309740 is 479036056.

It is a junction number, because it is equal to n+sod(n) for n = 6506309693 and 6506309702.

It is not an unprimeable number, because it can be changed into a prime (6506309749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21415 + ... + 116065.

It is an arithmetic number, because the mean of its divisors is an integer number (325981488).

Almost surely, 2^6506309740 is an apocalyptic number.

It is an amenable number.

6506309740 is an abundant number, since it is smaller than the sum of its proper divisors (9140801684).

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

6506309740 is a wasteful number, since it uses less digits than its factorization.

6506309740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95158 (or 95156 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 6506309740 is about 80661.6993374179. The cubic root of 6506309740 is about 1866.8592593945.

The spelling of 6506309740 in words is "six billion, five hundred six million, three hundred nine thousand, seven hundred forty".