6492451780 has 24 divisors (see below), whose sum is σ = 13642417152. Its totient is φ = 2595405792.

The previous prime is 6492451769. The next prime is 6492451787. The reversal of 6492451780 is 871542946.

It is a self number, because there is not a number n which added to its sum of digits gives 6492451780.

It is not an unprimeable number, because it can be changed into a prime (6492451787) 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, 64342 + ... + 130861.

It is an arithmetic number, because the mean of its divisors is an integer number (568434048).

Almost surely, 2^6492451780 is an apocalyptic number.

It is an amenable number.

6492451780 is an abundant number, since it is smaller than the sum of its proper divisors (7149965372).

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

6492451780 is a wasteful number, since it uses less digits than its factorization.

6492451780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196875 (or 196873 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 6492451780 is about 80575.7518115717. The cubic root of 6492451780 is about 1865.5328930713.

The spelling of 6492451780 in words is "six billion, four hundred ninety-two million, four hundred fifty-one thousand, seven hundred eighty".