6950486781 has 72 divisors (see below), whose sum is σ = 12150597888. Its totient is φ = 3813264000.

The previous prime is 6950486779. The next prime is 6950486783. The reversal of 6950486781 is 1876840596.

6950486781 is a `hidden beast` number, since 6 + 95 + 0 + 486 + 78 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (6950486779) and next prime (6950486783).

It is not a de Polignac number, because 6950486781 - 2¹ = 6950486779 is a prime.

It is a super-2 number, since 2×6950486781² = 96618532985711483922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6950486783) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1788961 + ... + 1792841.

It is an arithmetic number, because the mean of its divisors is an integer number (168758304).

Almost surely, 2^6950486781 is an apocalyptic number.

It is an amenable number.

6950486781 is a deficient number, since it is larger than the sum of its proper divisors (5200111107).

6950486781 is a wasteful number, since it uses less digits than its factorization.

6950486781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063 (or 4053 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 6950486781 is about 83369.5794699721. The cubic root of 6950486781 is about 1908.4102504105.

The spelling of 6950486781 in words is "six billion, nine hundred fifty million, four hundred eighty-six thousand, seven hundred eighty-one".