6494785780 has 48 divisors (see below), whose sum is σ = 15648224256. Its totient is φ = 2218106880.

The previous prime is 6494785763. The next prime is 6494785807. The reversal of 6494785780 is 875874946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54276 + ... + 126235.

It is an arithmetic number, because the mean of its divisors is an integer number (326004672).

Almost surely, 2^6494785780 is an apocalyptic number.

It is an amenable number.

6494785780 is an abundant number, since it is smaller than the sum of its proper divisors (9153438476).

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

6494785780 is a wasteful number, since it uses less digits than its factorization.

6494785780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180784 (or 180782 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 58.

The square root of 6494785780 is about 80590.2337755636. The cubic root of 6494785780 is about 1865.7564158256.

The spelling of 6494785780 in words is "six billion, four hundred ninety-four million, seven hundred eighty-five thousand, seven hundred eighty".