64640314363635 has 48 divisors (see below), whose sum is σ = 122460891621120. Its totient is φ = 31400228597760.

The previous prime is 64640314363633. The next prime is 64640314363679. The reversal of 64640314363635 is 53636341304646.

64640314363635 is a `hidden beast` number, since 6 + 4 + 6 + 403 + 143 + 63 + 6 + 35 = 666.

It is not a de Polignac number, because 64640314363635 - 2¹ = 64640314363633 is a prime.

It is a super-3 number, since 3×64640314363635³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64640314363631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1362833430 + ... + 1362880859.

It is an arithmetic number, because the mean of its divisors is an integer number (2551268575440).

Almost surely, 2^{64640314363635} is an apocalyptic number.

64640314363635 is a deficient number, since it is larger than the sum of its proper divisors (57820577257485).

64640314363635 is a wasteful number, since it uses less digits than its factorization.

64640314363635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725714348 (or 2725714345 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 54.

The spelling of 64640314363635 in words is "sixty-four trillion, six hundred forty billion, three hundred fourteen million, three hundred sixty-three thousand, six hundred thirty-five".