64005653242 has 8 divisors (see below), whose sum is σ = 101656037556. Its totient is φ = 30120307392.

The previous prime is 64005653177. The next prime is 64005653269. The reversal of 64005653242 is 24235650046.

It can be written as a sum of positive squares in 2 ways, for example, as 63463182561 + 542470681 = 251919^2 + 23291^2 .

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

It is a super-2 number, since 2×64005653242² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 941259573 + ... + 941259640.

Almost surely, 2^64005653242 is an apocalyptic number.

64005653242 is a deficient number, since it is larger than the sum of its proper divisors (37650384314).

64005653242 is a wasteful number, since it uses less digits than its factorization.

64005653242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882519232.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 64005653242 in words is "sixty-four billion, five million, six hundred fifty-three thousand, two hundred forty-two".