43876604640 has 96 divisors (see below), whose sum is σ = 150775986816. Its totient is φ = 10636751360.

The previous prime is 43876604621. The next prime is 43876604641. The reversal of 43876604640 is 4640667834.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 43876604640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43876604641) 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, 4149702 + ... + 4160261.

It is an arithmetic number, because the mean of its divisors is an integer number (1570583196).

Almost surely, 2^43876604640 is an apocalyptic number.

43876604640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43876604640 is an abundant number, since it is smaller than the sum of its proper divisors (106899382176).

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

43876604640 is a wasteful number, since it uses less digits than its factorization.

43876604640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8309992 (or 8309984 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 48.

The spelling of 43876604640 in words is "forty-three billion, eight hundred seventy-six million, six hundred four thousand, six hundred forty".