6404071447756 has 6 divisors (see below), whose sum is σ = 11207125033580. Its totient is φ = 3202035723876.

The previous prime is 6404071447717. The next prime is 6404071447783. The reversal of 6404071447756 is 6577441704046.

It is a super-2 number, since 2×6404071447756² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6404071447697 and 6404071447706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800508930966 + ... + 800508930973.

Almost surely, 2^{6404071447756} is an apocalyptic number.

It is an amenable number.

6404071447756 is a deficient number, since it is larger than the sum of its proper divisors (4803053585824).

6404071447756 is a wasteful number, since it uses less digits than its factorization.

6404071447756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601017861943 (or 1601017861941 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 55.

The spelling of 6404071447756 in words is "six trillion, four hundred four billion, seventy-one million, four hundred forty-seven thousand, seven hundred fifty-six".