64210428505011 has 32 divisors (see below), whose sum is σ = 86250363978240. Its totient is φ = 42489191808000.

The previous prime is 64210428504991. The next prime is 64210428505169. The reversal of 64210428505011 is 11050582401246.

It is a happy number.

It is not a de Polignac number, because 64210428505011 - 2⁹ = 64210428504499 is a prime.

It is a super-2 number, since 2×64210428505011² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64210428505411) 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, 6318053416 + ... + 6318063578.

It is an arithmetic number, because the mean of its divisors is an integer number (2695323874320).

Almost surely, 2^{64210428505011} is an apocalyptic number.

64210428505011 is a deficient number, since it is larger than the sum of its proper divisors (22039935473229).

64210428505011 is a wasteful number, since it uses less digits than its factorization.

64210428505011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20187.

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 64210428505011 in words is "sixty-four trillion, two hundred ten billion, four hundred twenty-eight million, five hundred five thousand, eleven".