43157901872 has 10 divisors (see below), whose sum is σ = 83618434908. Its totient is φ = 21578950928.

The previous prime is 43157901847. The next prime is 43157901881. The reversal of 43157901872 is 27810975134.

It is a super-2 number, since 2×43157901872² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1348684418 + ... + 1348684449.

Almost surely, 2^43157901872 is an apocalyptic number.

It is an amenable number.

43157901872 is a deficient number, since it is larger than the sum of its proper divisors (40460533036).

43157901872 is a wasteful number, since it uses less digits than its factorization.

43157901872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697368875 (or 2697368869 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 43157901872 in words is "forty-three billion, one hundred fifty-seven million, nine hundred one thousand, eight hundred seventy-two".