64142921038 has 8 divisors (see below), whose sum is σ = 109959293232. Its totient is φ = 27489823296.

The previous prime is 64142921021. The next prime is 64142921071. The reversal of 64142921038 is 83012924146.

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

It is a super-2 number, since 2×64142921038² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2290818595 + ... + 2290818622.

It is an arithmetic number, because the mean of its divisors is an integer number (13744911654).

Almost surely, 2^64142921038 is an apocalyptic number.

64142921038 is a deficient number, since it is larger than the sum of its proper divisors (45816372194).

64142921038 is a wasteful number, since it uses less digits than its factorization.

64142921038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4581637226.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 64142921038 in words is "sixty-four billion, one hundred forty-two million, nine hundred twenty-one thousand, thirty-eight".