64436910050 has 18 divisors (see below), whose sum is σ = 119855991393. Its totient is φ = 25774046040.

The previous prime is 64436910047. The next prime is 64436910053. The reversal of 64436910050 is 5001963446.

It is an interprime number because it is at equal distance from previous prime (64436910047) and next prime (64436910053).

It can be written as a sum of positive squares in 2 ways, for example, as 63148171849 + 1288738201 = 251293^2 + 35899^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=179495.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64436909986 and 64436910013.

It is not an unprimeable number, because it can be changed into a prime (64436910053) 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 8 ways as a sum of consecutive naturals, for example, 1777001 + ... + 1812899.

Almost surely, 2^64436910050 is an apocalyptic number.

64436910050 is a deficient number, since it is larger than the sum of its proper divisors (55419081343).

64436910050 is an frugal number, since it uses more digits than its factorization.

64436910050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71810 (or 35906 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 64436910050 in words is "sixty-four billion, four hundred thirty-six million, nine hundred ten thousand, fifty".