6474769778 has 16 divisors (see below), whose sum is σ = 9756561024. Its totient is φ = 3222613680.

The previous prime is 6474769757. The next prime is 6474769853. The reversal of 6474769778 is 8779674746.

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, 440951 + ... + 455397.

It is an arithmetic number, because the mean of its divisors is an integer number (609785064).

Almost surely, 2^6474769778 is an apocalyptic number.

6474769778 is a deficient number, since it is larger than the sum of its proper divisors (3281791246).

6474769778 is a wasteful number, since it uses less digits than its factorization.

6474769778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15457.

The product of its digits is 99574272, while the sum is 65.

The square root of 6474769778 is about 80465.9541545367. The cubic root of 6474769778 is about 1863.8377785676.

The spelling of 6474769778 in words is "six billion, four hundred seventy-four million, seven hundred sixty-nine thousand, seven hundred seventy-eight".