43948976961 has 4 divisors (see below), whose sum is σ = 58598635952. Its totient is φ = 29299317972.

The previous prime is 43948976959. The next prime is 43948977053. The reversal of 43948976961 is 16967984934.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43948976961 - 2¹ = 43948976959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43948976892 and 43948976901.

It is not an unprimeable number, because it can be changed into a prime (43948976941) 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, 7324829491 + ... + 7324829496.

It is an arithmetic number, because the mean of its divisors is an integer number (14649658988).

Almost surely, 2^43948976961 is an apocalyptic number.

It is an amenable number.

43948976961 is a deficient number, since it is larger than the sum of its proper divisors (14649658991).

43948976961 is a wasteful number, since it uses less digits than its factorization.

43948976961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14649658990.

The product of its digits is 70543872, while the sum is 66.

The spelling of 43948976961 in words is "forty-three billion, nine hundred forty-eight million, nine hundred seventy-six thousand, nine hundred sixty-one".