6694368780 has 96 divisors (see below), whose sum is σ = 21107939328. Its totient is φ = 1570521600.

The previous prime is 6694368731. The next prime is 6694368797. The reversal of 6694368780 is 878634966.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6694368780.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143137 + ... + 184056.

It is an arithmetic number, because the mean of its divisors is an integer number (219874368).

Almost surely, 2^6694368780 is an apocalyptic number.

6694368780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6694368780 is an abundant number, since it is smaller than the sum of its proper divisors (14413570548).

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

6694368780 is a wasteful number, since it uses less digits than its factorization.

6694368780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327247 (or 327245 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The square root of 6694368780 is about 81819.1223370185. The cubic root of 6694368780 is about 1884.6753239583.

The spelling of 6694368780 in words is "six billion, six hundred ninety-four million, three hundred sixty-eight thousand, seven hundred eighty".