6864745355 has 12 divisors (see below), whose sum is σ = 8920108080. Its totient is φ = 5069349792.

The previous prime is 6864745337. The next prime is 6864745409. The reversal of 6864745355 is 5535474686.

It is a happy number.

It is not a de Polignac number, because 6864745355 - 2²² = 6860551051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6864745297 and 6864745306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4061135 + ... + 4062824.

It is an arithmetic number, because the mean of its divisors is an integer number (743342340).

Almost surely, 2^6864745355 is an apocalyptic number.

6864745355 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6864745355 is a deficient number, since it is larger than the sum of its proper divisors (2055362725).

6864745355 is a wasteful number, since it uses less digits than its factorization.

6864745355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8123990 (or 8123977 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 53.

The square root of 6864745355 is about 82853.7588465363. The cubic root of 6864745355 is about 1900.5303556391.

The spelling of 6864745355 in words is "six billion, eight hundred sixty-four million, seven hundred forty-five thousand, three hundred fifty-five".