64149443156293 has 16 divisors (see below), whose sum is σ = 70661243068416. Its totient is φ = 57750991637040.

The previous prime is 64149443156269. The next prime is 64149443156299. The reversal of 64149443156293 is 39265134494146.

It is a cyclic number.

It is not a de Polignac number, because 64149443156293 - 2¹⁷ = 64149443025221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64149443156299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225985696 + ... + 226269382.

It is an arithmetic number, because the mean of its divisors is an integer number (4416327691776).

Almost surely, 2^{64149443156293} is an apocalyptic number.

It is an amenable number.

64149443156293 is a deficient number, since it is larger than the sum of its proper divisors (6511799912123).

64149443156293 is a wasteful number, since it uses less digits than its factorization.

64149443156293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483384.

The product of its digits is 67184640, while the sum is 61.

The spelling of 64149443156293 in words is "sixty-four trillion, one hundred forty-nine billion, four hundred forty-three million, one hundred fifty-six thousand, two hundred ninety-three".