64730203746 has 64 divisors (see below), whose sum is σ = 140748814080. Its totient is φ = 19727769600.

The previous prime is 64730203711. The next prime is 64730203753.

64730203746 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64730203698 and 64730203707.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4149850 + ... + 4165418.

It is an arithmetic number, because the mean of its divisors is an integer number (2199200220).

Almost surely, 2^64730203746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64730203746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70374407040).

64730203746 is an abundant number, since it is smaller than the sum of its proper divisors (76018610334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64730203746 is a wasteful number, since it uses less digits than its factorization.

64730203746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16091.

The product of its (nonzero) digits is 508032, while the sum is 42.

The spelling of 64730203746 in words is "sixty-four billion, seven hundred thirty million, two hundred three thousand, seven hundred forty-six".