438813730747 has 32 divisors (see below), whose sum is σ = 548534681600. Its totient is φ = 342551268000.

The previous prime is 438813730727. The next prime is 438813730763. The reversal of 438813730747 is 747037318834.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438813730747 is a prime.

It is a super-2 number, since 2×438813730747² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (438813730717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270154 + ... + 974992.

It is an arithmetic number, because the mean of its divisors is an integer number (17141708800).

Almost surely, 2^438813730747 is an apocalyptic number.

438813730747 is a deficient number, since it is larger than the sum of its proper divisors (109720950853).

438813730747 is a wasteful number, since it uses less digits than its factorization.

438813730747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705047.

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 438813730747 in words is "four hundred thirty-eight billion, eight hundred thirteen million, seven hundred thirty thousand, seven hundred forty-seven".