6450426645 has 48 divisors (see below), whose sum is σ = 11561149440. Its totient is φ = 3066056448.

The previous prime is 6450426643. The next prime is 6450426701. The reversal of 6450426645 is 5466240546.

It is not a de Polignac number, because 6450426645 - 2¹ = 6450426643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6450426597 and 6450426606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6450426643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29644 + ... + 117386.

It is an arithmetic number, because the mean of its divisors is an integer number (240857280).

Almost surely, 2^6450426645 is an apocalyptic number.

6450426645 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6450426645 is a deficient number, since it is larger than the sum of its proper divisors (5110722795).

6450426645 is a wasteful number, since it uses less digits than its factorization.

6450426645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87806 (or 87793 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The square root of 6450426645 is about 80314.5481528720. The cubic root of 6450426645 is about 1861.4990271430.

The spelling of 6450426645 in words is "six billion, four hundred fifty million, four hundred twenty-six thousand, six hundred forty-five".