43954311075064 has 16 divisors (see below), whose sum is σ = 88753897363320. Its totient is φ = 20286605111520.

The previous prime is 43954311075061. The next prime is 43954311075071. The reversal of 43954311075064 is 46057011345934.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43954311075061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211318803142 + ... + 211318803349.

Almost surely, 2^{43954311075064} is an apocalyptic number.

It is an amenable number.

43954311075064 is an abundant number, since it is smaller than the sum of its proper divisors (44799586288256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43954311075064 is a wasteful number, since it uses less digits than its factorization.

43954311075064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422637606510 (or 422637606506 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 43954311075064 in words is "forty-three trillion, nine hundred fifty-four billion, three hundred eleven million, seventy-five thousand, sixty-four".