6694379360440 has 64 divisors (see below), whose sum is σ = 15124690072800. Its totient is φ = 2666689462272.

The previous prime is 6694379360423. The next prime is 6694379360441. The reversal of 6694379360440 is 440639734966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694379360441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10550019 + ... + 11166541.

Almost surely, 2^{6694379360440} is an apocalyptic number.

It is an amenable number.

6694379360440 is an abundant number, since it is smaller than the sum of its proper divisors (8430310712360).

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

6694379360440 is a wasteful number, since it uses less digits than its factorization.

6694379360440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617656 (or 617652 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 61.

The spelling of 6694379360440 in words is "six trillion, six hundred ninety-four billion, three hundred seventy-nine million, three hundred sixty thousand, four hundred forty".