43195365540 has 72 divisors (see below), whose sum is σ = 131077143288. Its totient is φ = 11514263040.

The previous prime is 43195365539. The next prime is 43195365571. The reversal of 43195365540 is 4556359134.

43195365540 is a `hidden beast` number, since 4 + 3 + 1 + 95 + 3 + 6 + 554 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 336428964 + 42858936576 = 18342^2 + 207024^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 428370 + ... + 519510.

It is an arithmetic number, because the mean of its divisors is an integer number (1820515879).

Almost surely, 2^43195365540 is an apocalyptic number.

It is an amenable number.

43195365540 is an abundant number, since it is smaller than the sum of its proper divisors (87881777748).

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

43195365540 is a wasteful number, since it uses less digits than its factorization.

43195365540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93789 (or 93784 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 43195365540 in words is "forty-three billion, one hundred ninety-five million, three hundred sixty-five thousand, five hundred forty".