64051562642 has 16 divisors (see below), whose sum is σ = 97333270272. Its totient is φ = 31607920080.

The previous prime is 64051562629. The next prime is 64051562669. The reversal of 64051562642 is 24626515046.

It is a self number, because there is not a number n which added to its sum of digits gives 64051562642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30173 + ... + 359184.

It is an arithmetic number, because the mean of its divisors is an integer number (6083329392).

Almost surely, 2^64051562642 is an apocalyptic number.

64051562642 is a deficient number, since it is larger than the sum of its proper divisors (33281707630).

64051562642 is a wasteful number, since it uses less digits than its factorization.

64051562642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390433.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 64051562642 in words is "sixty-four billion, fifty-one million, five hundred sixty-two thousand, six hundred forty-two".