64146607943 has 8 divisors (see below), whose sum is σ = 74094477840. Its totient is φ = 54884798080.

The previous prime is 64146607939. The next prime is 64146607949. The reversal of 64146607943 is 34970664146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64146607943 - 2² = 64146607939 is a prime.

It is a super-2 number, since 2×64146607943² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64146607891 and 64146607900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64146607949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171514808 + ... + 171515181.

It is an arithmetic number, because the mean of its divisors is an integer number (9261809730).

Almost surely, 2^64146607943 is an apocalyptic number.

64146607943 is a deficient number, since it is larger than the sum of its proper divisors (9947869897).

64146607943 is a wasteful number, since it uses less digits than its factorization.

64146607943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343030017.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 64146607943 in words is "sixty-four billion, one hundred forty-six million, six hundred seven thousand, nine hundred forty-three".