64124351245 has 16 divisors (see below), whose sum is σ = 81005682240. Its totient is φ = 48595607424.

The previous prime is 64124351231. The next prime is 64124351257. The reversal of 64124351245 is 54215342146.

It is a cyclic number.

It is not a de Polignac number, because 64124351245 - 2¹³ = 64124343053 is a prime.

It is a super-2 number, since 2×64124351245² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1827234 + ... + 1861996.

It is an arithmetic number, because the mean of its divisors is an integer number (5062855140).

Almost surely, 2^64124351245 is an apocalyptic number.

It is an amenable number.

64124351245 is a deficient number, since it is larger than the sum of its proper divisors (16881330995).

64124351245 is a wasteful number, since it uses less digits than its factorization.

64124351245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54204.

The product of its digits is 115200, while the sum is 37.

Subtracting from 64124351245 its reverse (54215342146), we obtain a palindrome (9909009099).

The spelling of 64124351245 in words is "sixty-four billion, one hundred twenty-four million, three hundred fifty-one thousand, two hundred forty-five".