6900645345 has 16 divisors (see below), whose sum is σ = 12044763072. Its totient is φ = 3345767360.

The previous prime is 6900645337. The next prime is 6900645347. The reversal of 6900645345 is 5435460096.

It is not a de Polignac number, because 6900645345 - 2³ = 6900645337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6900645297 and 6900645306.

It is not an unprimeable number, because it can be changed into a prime (6900645347) 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, 20910882 + ... + 20911211.

It is an arithmetic number, because the mean of its divisors is an integer number (752797692).

Almost surely, 2^6900645345 is an apocalyptic number.

It is an amenable number.

6900645345 is a deficient number, since it is larger than the sum of its proper divisors (5144117727).

6900645345 is a wasteful number, since it uses less digits than its factorization.

6900645345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41822112.

The product of its (nonzero) digits is 388800, while the sum is 42.

The square root of 6900645345 is about 83070.1230587749. The cubic root of 6900645345 is about 1903.8376124697.

The spelling of 6900645345 in words is "six billion, nine hundred million, six hundred forty-five thousand, three hundred forty-five".