6851392560 has 80 divisors (see below), whose sum is σ = 23599248480. Its totient is φ = 1827037440.

The previous prime is 6851392543. The next prime is 6851392591. The reversal of 6851392560 is 652931586.

6851392560 is a `hidden beast` number, since 6 + 8 + 51 + 39 + 2 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×6851392560² = 93883160022446707200, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1583811 + ... + 1588130.

It is an arithmetic number, because the mean of its divisors is an integer number (294990606).

Almost surely, 2^6851392560 is an apocalyptic number.

6851392560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6851392560 is an abundant number, since it is smaller than the sum of its proper divisors (16747855920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6851392560 is a wasteful number, since it uses less digits than its factorization.

6851392560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171963 (or 3171951 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 6851392560 is about 82773.1391213357. The cubic root of 6851392560 is about 1899.2972987765.

The spelling of 6851392560 in words is "six billion, eight hundred fifty-one million, three hundred ninety-two thousand, five hundred sixty".