6949489540 has 24 divisors (see below), whose sum is σ = 16678775232. Its totient is φ = 2382682080.

The previous prime is 6949489507. The next prime is 6949489541. The reversal of 6949489540 is 459849496.

It is not an unprimeable number, because it can be changed into a prime (6949489541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24819466 + ... + 24819745.

It is an arithmetic number, because the mean of its divisors is an integer number (694948968).

Almost surely, 2^6949489540 is an apocalyptic number.

It is an amenable number.

6949489540 is an abundant number, since it is smaller than the sum of its proper divisors (9729285692).

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

6949489540 is a wasteful number, since it uses less digits than its factorization.

6949489540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49639227 (or 49639225 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The square root of 6949489540 is about 83363.5984108172. The cubic root of 6949489540 is about 1908.3189745026.

The spelling of 6949489540 in words is "six billion, nine hundred forty-nine million, four hundred eighty-nine thousand, five hundred forty".