43121338896 has 20 divisors (see below), whose sum is σ = 111396792272. Its totient is φ = 14373779616.

The previous prime is 43121338889. The next prime is 43121338903. The reversal of 43121338896 is 69883312134.

It is an interprime number because it is at equal distance from previous prime (43121338889) and next prime (43121338903).

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 898361227 = 43121338896 / (4 + 3 + 1 + 2 + 1 + 3 + 3 + 8 + 8 + 9 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449180566 + ... + 449180661.

Almost surely, 2^43121338896 is an apocalyptic number.

It is an amenable number.

43121338896 is an abundant number, since it is smaller than the sum of its proper divisors (68275453376).

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

43121338896 is a wasteful number, since it uses less digits than its factorization.

43121338896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898361238 (or 898361232 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The spelling of 43121338896 in words is "forty-three billion, one hundred twenty-one million, three hundred thirty-eight thousand, eight hundred ninety-six".