6949698381 has 48 divisors (see below), whose sum is σ = 10814918400. Its totient is φ = 4286628864.

The previous prime is 6949698373. The next prime is 6949698401. The reversal of 6949698381 is 1838969496.

It is a happy number.

6949698381 is a `hidden beast` number, since 69 + 496 + 9 + 8 + 3 + 81 = 666.

It is not a de Polignac number, because 6949698381 - 2³ = 6949698373 is a prime.

It is a super-2 number, since 2×6949698381² = 96596615173748042322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6949698361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6887205 + ... + 6888213.

It is an arithmetic number, because the mean of its divisors is an integer number (225310800).

Almost surely, 2^6949698381 is an apocalyptic number.

It is an amenable number.

6949698381 is a deficient number, since it is larger than the sum of its proper divisors (3865220019).

6949698381 is a wasteful number, since it uses less digits than its factorization.

6949698381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1935 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The square root of 6949698381 is about 83364.8509924896. The cubic root of 6949698381 is about 1908.3380901152.

The spelling of 6949698381 in words is "six billion, nine hundred forty-nine million, six hundred ninety-eight thousand, three hundred eighty-one".