6407435656 has 32 divisors (see below), whose sum is σ = 12200366880. Its totient is φ = 3154060800.

The previous prime is 6407435621. The next prime is 6407435659. The reversal of 6407435656 is 6565347046.

It is not an unprimeable number, because it can be changed into a prime (6407435659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628011 + ... + 1631941.

It is an arithmetic number, because the mean of its divisors is an integer number (381261465).

Almost surely, 2^6407435656 is an apocalyptic number.

It is an amenable number.

6407435656 is a deficient number, since it is larger than the sum of its proper divisors (5792931224).

6407435656 is a wasteful number, since it uses less digits than its factorization.

6407435656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7045 (or 7041 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 46.

The square root of 6407435656 is about 80046.4593595494. The cubic root of 6407435656 is about 1857.3542813702.

It can be divided in two parts, 640 and 7435656, that added together give a triangular number (7436296 = T₃₈₅₆).

The spelling of 6407435656 in words is "six billion, four hundred seven million, four hundred thirty-five thousand, six hundred fifty-six".