7428013646 has 8 divisors (see below), whose sum is σ = 11143374120. Its totient is φ = 3713555608.

The previous prime is 7428013613. The next prime is 7428013679. The reversal of 7428013646 is 6463108247.

It is an interprime number because it is at equal distance from previous prime (7428013613) and next prime (7428013679).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204641 + ... + 238188.

It is an arithmetic number, because the mean of its divisors is an integer number (1392921765).

Almost surely, 2^7428013646 is an apocalyptic number.

7428013646 is a deficient number, since it is larger than the sum of its proper divisors (3715360474).

7428013646 is a wasteful number, since it uses less digits than its factorization.

7428013646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451218.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 7428013646 is about 86185.9248717562. The cubic root of 7428013646 is about 1951.1510754655.

The spelling of 7428013646 in words is "seven billion, four hundred twenty-eight million, thirteen thousand, six hundred forty-six".