6510645745 has 16 divisors (see below), whose sum is σ = 7918993152. Its totient is φ = 5137896960.

The previous prime is 6510645727. The next prime is 6510645767. The reversal of 6510645745 is 5475460156.

It is not a de Polignac number, because 6510645745 - 2²¹ = 6508548593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267640 + ... + 290950.

It is an arithmetic number, because the mean of its divisors is an integer number (494937072).

Almost surely, 2^6510645745 is an apocalyptic number.

It is an amenable number.

6510645745 is a deficient number, since it is larger than the sum of its proper divisors (1408347407).

6510645745 is a wasteful number, since it uses less digits than its factorization.

6510645745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24072.

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 6510645745 is about 80688.5725800128. The cubic root of 6510645745 is about 1867.2738781202.

The spelling of 6510645745 in words is "six billion, five hundred ten million, six hundred forty-five thousand, seven hundred forty-five".