64250227643 has 32 divisors (see below), whose sum is σ = 77844146688. Its totient is φ = 51876115200.

The previous prime is 64250227637. The next prime is 64250227711. The reversal of 64250227643 is 34672205246.

It is not a de Polignac number, because 64250227643 - 2¹⁰ = 64250226619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 64250227643.

It is not an unprimeable number, because it can be changed into a prime (64250227543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1367996 + ... + 1414182.

It is an arithmetic number, because the mean of its divisors is an integer number (2432629584).

Almost surely, 2^64250227643 is an apocalyptic number.

64250227643 is a deficient number, since it is larger than the sum of its proper divisors (13593919045).

64250227643 is a wasteful number, since it uses less digits than its factorization.

64250227643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46403.

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 64250227643 in words is "sixty-four billion, two hundred fifty million, two hundred twenty-seven thousand, six hundred forty-three".