43157692385 has 16 divisors (see below), whose sum is σ = 52423050960. Its totient is φ = 34105190400.

The previous prime is 43157692301. The next prime is 43157692393. The reversal of 43157692385 is 58329675134.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1906457569 + 41251234816 = 43663^2 + 203104^2 .

It is not a de Polignac number, because 43157692385 - 2²⁸ = 42889256929 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119981 + ... + 317349.

It is an arithmetic number, because the mean of its divisors is an integer number (3276440685).

Almost surely, 2^43157692385 is an apocalyptic number.

It is an amenable number.

43157692385 is a deficient number, since it is larger than the sum of its proper divisors (9265358575).

43157692385 is a wasteful number, since it uses less digits than its factorization.

43157692385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197908.

The product of its digits is 5443200, while the sum is 53.

The spelling of 43157692385 in words is "forty-three billion, one hundred fifty-seven million, six hundred ninety-two thousand, three hundred eighty-five".