6460008778 has 16 divisors (see below), whose sum is σ = 10201860000. Its totient is φ = 3059450352.

The previous prime is 6460008757. The next prime is 6460008787. The reversal of 6460008778 is 8778000646.

6460008778 is a modest number, since divided by 8778 gives 6460 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262548 + ... + 286096.

It is an arithmetic number, because the mean of its divisors is an integer number (637616250).

Almost surely, 2^6460008778 is an apocalyptic number.

6460008778 is a deficient number, since it is larger than the sum of its proper divisors (3741851222).

6460008778 is a wasteful number, since it uses less digits than its factorization.

6460008778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30789.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 6460008778 is about 80374.1797967482. The cubic root of 6460008778 is about 1862.4203256940.

The spelling of 6460008778 in words is "six billion, four hundred sixty million, eight thousand, seven hundred seventy-eight".