7436013720646 has 24 divisors (see below), whose sum is σ = 12978429061896. Its totient is φ = 3186041715360.

The previous prime is 7436013720623. The next prime is 7436013720659. The reversal of 7436013720646 is 6460273106347.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 7436013720646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9395196 + ... + 10155871.

It is an arithmetic number, because the mean of its divisors is an integer number (540767877579).

Almost surely, 2^{7436013720646} is an apocalyptic number.

7436013720646 is a deficient number, since it is larger than the sum of its proper divisors (5542415341250).

7436013720646 is a wasteful number, since it uses less digits than its factorization.

7436013720646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19554964 (or 19554957 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 7436013720646 in words is "seven trillion, four hundred thirty-six billion, thirteen million, seven hundred twenty thousand, six hundred forty-six".