6492472891 has 4 divisors (see below), whose sum is σ = 6497631000. Its totient is φ = 6487314784.

The previous prime is 6492472849. The next prime is 6492472937. The reversal of 6492472891 is 1982742946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6492472891 - 2⁹ = 6492472379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6492412891) 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, 2577166 + ... + 2579683.

It is an arithmetic number, because the mean of its divisors is an integer number (1624407750).

Almost surely, 2^6492472891 is an apocalyptic number.

6492472891 is a deficient number, since it is larger than the sum of its proper divisors (5158109).

6492472891 is a wasteful number, since it uses less digits than its factorization.

6492472891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158108.

The product of its digits is 1741824, while the sum is 52.

The square root of 6492472891 is about 80575.8828124148. The cubic root of 6492472891 is about 1865.5349150718.

The spelling of 6492472891 in words is "six billion, four hundred ninety-two million, four hundred seventy-two thousand, eight hundred ninety-one".