6777385402 has 16 divisors (see below), whose sum is σ = 10557768672. Its totient is φ = 3260481840.

The previous prime is 6777385399. The next prime is 6777385409. The reversal of 6777385402 is 2045837776.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6777385409) 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, 582349 + ... + 593872.

It is an arithmetic number, because the mean of its divisors is an integer number (659860542).

Almost surely, 2^6777385402 is an apocalyptic number.

6777385402 is a deficient number, since it is larger than the sum of its proper divisors (3780383270).

6777385402 is a wasteful number, since it uses less digits than its factorization.

6777385402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176333.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The square root of 6777385402 is about 82324.8771757359. The cubic root of 6777385402 is about 1892.4339369207.

The spelling of 6777385402 in words is "six billion, seven hundred seventy-seven million, three hundred eighty-five thousand, four hundred two".