64125050643 has 24 divisors (see below), whose sum is σ = 93782248560. Its totient is φ = 42217148160.

The previous prime is 64125050611. The next prime is 64125050659. The reversal of 64125050643 is 34605052146.

64125050643 is a `hidden beast` number, since 6 + 4 + 1 + 2 + 5 + 0 + 5 + 0 + 643 = 666.

It is not a de Polignac number, because 64125050643 - 2⁵ = 64125050611 is a prime.

It is a super-2 number, since 2×64125050643² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64125050598 and 64125050607.

It is not an unprimeable number, because it can be changed into a prime (64125058643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 600255 + ... + 698967.

It is an arithmetic number, because the mean of its divisors is an integer number (3907593690).

Almost surely, 2^64125050643 is an apocalyptic number.

64125050643 is a deficient number, since it is larger than the sum of its proper divisors (29657197917).

64125050643 is a wasteful number, since it uses less digits than its factorization.

64125050643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99619 (or 99616 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 64125050643 in words is "sixty-four billion, one hundred twenty-five million, fifty thousand, six hundred forty-three".