6518401492 has 12 divisors (see below), whose sum is σ = 11497024000. Its totient is φ = 3233537496.

The previous prime is 6518401447. The next prime is 6518401499. The reversal of 6518401492 is 2941048156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6518401499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6415242 + ... + 6416257.

Almost surely, 2^6518401492 is an apocalyptic number.

It is an amenable number.

6518401492 is a deficient number, since it is larger than the sum of its proper divisors (4978622508).

6518401492 is a wasteful number, since it uses less digits than its factorization.

6518401492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831630 (or 12831628 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 6518401492 is about 80736.6180366753. The cubic root of 6518401492 is about 1868.0150415209.

The spelling of 6518401492 in words is "six billion, five hundred eighteen million, four hundred one thousand, four hundred ninety-two".