43515120461 has 4 divisors (see below), whose sum is σ = 43516545024. Its totient is φ = 43513695900.

The previous prime is 43515120409. The next prime is 43515120463. The reversal of 43515120461 is 16402151534.

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 a cyclic number.

It is not a de Polignac number, because 43515120461 - 2¹⁰ = 43515119437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43515120463) 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, 665435 + ... + 727896.

It is an arithmetic number, because the mean of its divisors is an integer number (10879136256).

Almost surely, 2^43515120461 is an apocalyptic number.

It is an amenable number.

43515120461 is a deficient number, since it is larger than the sum of its proper divisors (1424563).

43515120461 is a wasteful number, since it uses less digits than its factorization.

43515120461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424562.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 43515120461 its reverse (16402151534), we get a palindrome (59917271995).

The spelling of 43515120461 in words is "forty-three billion, five hundred fifteen million, one hundred twenty thousand, four hundred sixty-one".