43864340454 has 64 divisors (see below), whose sum is σ = 106372800000. Its totient is φ = 13287849120.

The previous prime is 43864340453. The next prime is 43864340461. The reversal of 43864340454 is 45404346834.

43864340454 is a `hidden beast` number, since 43 + 86 + 43 + 40 + 454 = 666.

It is a super-2 number, since 2×43864340454² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43864340453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2103672 + ... + 2124420.

It is an arithmetic number, because the mean of its divisors is an integer number (1662075000).

Almost surely, 2^43864340454 is an apocalyptic number.

43864340454 is an abundant number, since it is smaller than the sum of its proper divisors (62508459546).

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

43864340454 is a wasteful number, since it uses less digits than its factorization.

43864340454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24330 (or 24324 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 45.

The spelling of 43864340454 in words is "forty-three billion, eight hundred sixty-four million, three hundred forty thousand, four hundred fifty-four".