64187783741 has 8 divisors (see below), whose sum is σ = 66734735424. Its totient is φ = 61687565280.

The previous prime is 64187783719. The next prime is 64187783743. The reversal of 64187783741 is 14738778146.

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

It is a cyclic number.

It is not a de Polignac number, because 64187783741 - 2¹⁰ = 64187782717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64187783743) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11680505 + ... + 11685998.

It is an arithmetic number, because the mean of its divisors is an integer number (8341841928).

Almost surely, 2^64187783741 is an apocalyptic number.

It is an amenable number.

64187783741 is a deficient number, since it is larger than the sum of its proper divisors (2546951683).

64187783741 is a wasteful number, since it uses less digits than its factorization.

64187783741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23366611.

The product of its digits is 6322176, while the sum is 56.

The spelling of 64187783741 in words is "sixty-four billion, one hundred eighty-seven million, seven hundred eighty-three thousand, seven hundred forty-one".