64125411005 has 4 divisors (see below), whose sum is σ = 76950493212. Its totient is φ = 51300328800.

The previous prime is 64125410957. The next prime is 64125411037. The reversal of 64125411005 is 50011452146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50011452146 = 2 ⋅25005726073.

It can be written as a sum of positive squares in 2 ways, for example, as 10269390244 + 53856020761 = 101338^2 + 232069^2 .

It is a de Polignac number, because none of the positive numbers 2^k-64125411005 is a prime.

It is a super-2 number, since 2×64125411005² (a number of 22 digits) contains 22 as substring.

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, 6412541096 + ... + 6412541105.

It is an arithmetic number, because the mean of its divisors is an integer number (19237623303).

Almost surely, 2^64125411005 is an apocalyptic number.

It is an amenable number.

64125411005 is a deficient number, since it is larger than the sum of its proper divisors (12825082207).

64125411005 is a wasteful number, since it uses less digits than its factorization.

64125411005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12825082206.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 64125411005 in words is "sixty-four billion, one hundred twenty-five million, four hundred eleven thousand, five".