6450770745 has 20 divisors (see below), whose sum is σ = 11563604580. Its totient is φ = 3440410848.

The previous prime is 6450770743. The next prime is 6450770773. The reversal of 6450770745 is 5470770546.

6450770745 is a `hidden beast` number, since 6 + 4 + 507 + 70 + 74 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2347983936 + 4102786809 = 48456^2 + 64053^2 .

It is not a de Polignac number, because 6450770745 - 2¹ = 6450770743 is a prime.

It is a super-2 number, since 2×6450770745² = 83224886409095710050, which contains 22 as substring.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6450770745.

It is not an unprimeable number, because it can be changed into a prime (6450770743) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7963510 + ... + 7964319.

It is an arithmetic number, because the mean of its divisors is an integer number (578180229).

Almost surely, 2^6450770745 is an apocalyptic number.

It is an amenable number.

6450770745 is a deficient number, since it is larger than the sum of its proper divisors (5112833835).

6450770745 is a wasteful number, since it uses less digits than its factorization.

6450770745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15927846 (or 15927837 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 45.

The square root of 6450770745 is about 80316.6903264820. The cubic root of 6450770745 is about 1861.5321273011.

The spelling of 6450770745 in words is "six billion, four hundred fifty million, seven hundred seventy thousand, seven hundred forty-five".