43135316949 has 16 divisors (see below), whose sum is σ = 61636367232. Its totient is φ = 26763156288.

The previous prime is 43135316929. The next prime is 43135316951. The reversal of 43135316949 is 94961353134.

It is not a de Polignac number, because 43135316949 - 2¹³ = 43135308757 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43135316898 and 43135316907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43135316929) 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, 8445414 + ... + 8450519.

It is an arithmetic number, because the mean of its divisors is an integer number (3852272952).

Almost surely, 2^43135316949 is an apocalyptic number.

It is an amenable number.

43135316949 is a deficient number, since it is larger than the sum of its proper divisors (18501050283).

43135316949 is a wasteful number, since it uses less digits than its factorization.

43135316949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16895996.

The product of its digits is 1049760, while the sum is 48.

The spelling of 43135316949 in words is "forty-three billion, one hundred thirty-five million, three hundred sixteen thousand, nine hundred forty-nine".