64263010503 has 16 divisors (see below), whose sum is σ = 85905169376. Its totient is φ = 42731504640.

The previous prime is 64263010463. The next prime is 64263010519. The reversal of 64263010503 is 30501036246.

It is not a de Polignac number, because 64263010503 - 2¹⁷ = 64262879431 is a prime.

It is the 253502-nd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64263010543) by changing a digit.

It is a nontrivial repunit in base 253501.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4188975 + ... + 4204287.

It is an arithmetic number, because the mean of its divisors is an integer number (5369073086).

Almost surely, 2^64263010503 is an apocalyptic number.

64263010503 is a deficient number, since it is larger than the sum of its proper divisors (21642158873).

64263010503 is a wasteful number, since it uses less digits than its factorization.

64263010503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18834.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 64263010503 its reverse (30501036246), we get a palindrome (94764046749).

The spelling of 64263010503 in words is "sixty-four billion, two hundred sixty-three million, ten thousand, five hundred three".