6700103781 has 32 divisors (see below), whose sum is σ = 10486333440. Its totient is φ = 3725555904.

The previous prime is 6700103777. The next prime is 6700103791. The reversal of 6700103781 is 1873010076.

It is not a de Polignac number, because 6700103781 - 2² = 6700103777 is a prime.

It is a super-2 number, since 2×6700103781² = 89782781352340991922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6700103731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229116 + ... + 256698.

It is an arithmetic number, because the mean of its divisors is an integer number (327697920).

Almost surely, 2^6700103781 is an apocalyptic number.

It is an amenable number.

6700103781 is a deficient number, since it is larger than the sum of its proper divisors (3786229659).

6700103781 is a wasteful number, since it uses less digits than its factorization.

6700103781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27905.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 6700103781 is about 81854.1616596249. The cubic root of 6700103781 is about 1885.2133647179.

The spelling of 6700103781 in words is "six billion, seven hundred million, one hundred three thousand, seven hundred eighty-one".