6866447050905 has 32 divisors (see below), whose sum is σ = 11844461322624. Its totient is φ = 3376677597696.

The previous prime is 6866447050823. The next prime is 6866447050907. The reversal of 6866447050905 is 5090507446686.

It is not a de Polignac number, because 6866447050905 - 2⁸ = 6866447050649 is a prime.

It is a super-2 number, since 2×6866447050905² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6866447050907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19234684 + ... + 19588413.

It is an arithmetic number, because the mean of its divisors is an integer number (370139416332).

Almost surely, 2^{6866447050905} is an apocalyptic number.

6866447050905 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6866447050905 is a deficient number, since it is larger than the sum of its proper divisors (4978014271719).

6866447050905 is a wasteful number, since it uses less digits than its factorization.

6866447050905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38824025.

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 6866447050905 in words is "six trillion, eight hundred sixty-six billion, four hundred forty-seven million, fifty thousand, nine hundred five".