64235403481 has 8 divisors (see below), whose sum is σ = 64400690304. Its totient is φ = 64070326320.

The previous prime is 64235403469. The next prime is 64235403493. The reversal of 64235403481 is 18430453246.

It is an interprime number because it is at equal distance from previous prime (64235403469) and next prime (64235403493).

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

It is a cyclic number.

It is not a de Polignac number, because 64235403481 - 2¹⁹ = 64234879193 is a prime.

It is a super-2 number, since 2×64235403481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64235403451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570595 + ... + 673831.

It is an arithmetic number, because the mean of its divisors is an integer number (8050086288).

Almost surely, 2^64235403481 is an apocalyptic number.

It is an amenable number.

64235403481 is a deficient number, since it is larger than the sum of its proper divisors (165286823).

64235403481 is a wasteful number, since it uses less digits than its factorization.

64235403481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104831.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 64235403481 in words is "sixty-four billion, two hundred thirty-five million, four hundred three thousand, four hundred eighty-one".