64019405127 has 4 divisors (see below), whose sum is σ = 85359206840. Its totient is φ = 42679603416.

The previous prime is 64019405089. The next prime is 64019405129. The reversal of 64019405127 is 72150491046.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64019405127 - 2¹⁴ = 64019388743 is a prime.

It is a super-2 number, since 2×64019405127² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64019405129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10669900852 + ... + 10669900857.

It is an arithmetic number, because the mean of its divisors is an integer number (21339801710).

Almost surely, 2^64019405127 is an apocalyptic number.

64019405127 is a deficient number, since it is larger than the sum of its proper divisors (21339801713).

64019405127 is a wasteful number, since it uses less digits than its factorization.

64019405127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21339801712.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 64019405127 in words is "sixty-four billion, nineteen million, four hundred five thousand, one hundred twenty-seven".