6419644534690 has 16 divisors (see below), whose sum is σ = 11727828225792. Its totient is φ = 2529531577584.

The previous prime is 6419644534673. The next prime is 6419644534711. The reversal of 6419644534690 is 964354469146.

It is a super-2 number, since 2×6419644534690² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4790778834 + ... + 4790780173.

It is an arithmetic number, because the mean of its divisors is an integer number (732989264112).

Almost surely, 2^{6419644534690} is an apocalyptic number.

6419644534690 is a deficient number, since it is larger than the sum of its proper divisors (5308183691102).

6419644534690 is a wasteful number, since it uses less digits than its factorization.

6419644534690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581559081.

The product of its (nonzero) digits is 67184640, while the sum is 61.

The spelling of 6419644534690 in words is "six trillion, four hundred nineteen billion, six hundred forty-four million, five hundred thirty-four thousand, six hundred ninety".