64210124005 has 4 divisors (see below), whose sum is σ = 77052148812. Its totient is φ = 51368099200.

The previous prime is 64210123927. The next prime is 64210124039. The reversal of 64210124005 is 50042101246.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8423935524 + 55786188481 = 91782^2 + 236191^2 .

It is not a de Polignac number, because 64210124005 - 2¹³ = 64210115813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6421012396 + ... + 6421012405.

It is an arithmetic number, because the mean of its divisors is an integer number (19263037203).

Almost surely, 2^64210124005 is an apocalyptic number.

It is an amenable number.

64210124005 is a deficient number, since it is larger than the sum of its proper divisors (12842024807).

64210124005 is a wasteful number, since it uses less digits than its factorization.

64210124005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842024806.

The product of its (nonzero) digits is 1920, while the sum is 25.

The spelling of 64210124005 in words is "sixty-four billion, two hundred ten million, one hundred twenty-four thousand, five".