43540929054 has 112 divisors (see below), whose sum is σ = 112447140480. Its totient is φ = 12380694480.

The previous prime is 43540929053. The next prime is 43540929073. The reversal of 43540929054 is 45092904534.

43540929054 is a `hidden beast` number, since 4 + 354 + 0 + 9 + 290 + 5 + 4 = 666.

It is a super-2 number, since 2×43540929054² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43540929053) 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 55 ways as a sum of consecutive naturals, for example, 2143357 + ... + 2163575.

Almost surely, 2^43540929054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43540929054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56223570240).

43540929054 is an abundant number, since it is smaller than the sum of its proper divisors (68906211426).

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

43540929054 is a wasteful number, since it uses less digits than its factorization.

43540929054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20457 (or 20442 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 43540929054 in words is "forty-three billion, five hundred forty million, nine hundred twenty-nine thousand, fifty-four".