64184657121642 has 32 divisors (see below), whose sum is σ = 129995851668480. Its totient is φ = 21123802842480.

The previous prime is 64184657121551. The next prime is 64184657121647. The reversal of 64184657121642 is 24612175648146.

It is not an unprimeable number, because it can be changed into a prime (64184657121647) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 39537453 + ... + 41128815.

It is an arithmetic number, because the mean of its divisors is an integer number (4062370364640).

Almost surely, 2^{64184657121642} is an apocalyptic number.

64184657121642 is an abundant number, since it is smaller than the sum of its proper divisors (65811194546838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64184657121642 is a wasteful number, since it uses less digits than its factorization.

64184657121642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676538.

The product of its digits is 15482880, while the sum is 57.

The spelling of 64184657121642 in words is "sixty-four trillion, one hundred eighty-four billion, six hundred fifty-seven million, one hundred twenty-one thousand, six hundred forty-two".