43957906468654 has 16 divisors (see below), whose sum is σ = 69423261494400. Its totient is φ = 20817353995704.

The previous prime is 43957906468513. The next prime is 43957906468687. The reversal of 43957906468654 is 45686460975934.

It is a happy number.

It is a super-2 number, since 2×43957906468654² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133506364 + ... + 133835215.

It is an arithmetic number, because the mean of its divisors is an integer number (4338953843400).

Almost surely, 2^{43957906468654} is an apocalyptic number.

43957906468654 is a deficient number, since it is larger than the sum of its proper divisors (25465355025746).

43957906468654 is a wasteful number, since it uses less digits than its factorization.

43957906468654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267345927.

The product of its (nonzero) digits is 4702924800, while the sum is 76.

The spelling of 43957906468654 in words is "forty-three trillion, nine hundred fifty-seven billion, nine hundred six million, four hundred sixty-eight thousand, six hundred fifty-four".