64988272142 has 16 divisors (see below), whose sum is σ = 101005127280. Its totient is φ = 31340679552.

The previous prime is 64988272121. The next prime is 64988272147. The reversal of 64988272142 is 24127288946.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64988272147) by changing a digit.

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, 5189483 + ... + 5201990.

It is an arithmetic number, because the mean of its divisors is an integer number (6312820455).

Almost surely, 2^64988272142 is an apocalyptic number.

64988272142 is a deficient number, since it is larger than the sum of its proper divisors (36016855138).

64988272142 is a wasteful number, since it uses less digits than its factorization.

64988272142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10391587.

The product of its digits is 3096576, while the sum is 53.

The spelling of 64988272142 in words is "sixty-four billion, nine hundred eighty-eight million, two hundred seventy-two thousand, one hundred forty-two".