43640162741 has 8 divisors (see below), whose sum is σ = 50815499904. Its totient is φ = 36700082640.

The previous prime is 43640162737. The next prime is 43640162759. The reversal of 43640162741 is 14726104634.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43640162741 - 2² = 43640162737 is a prime.

It is a super-3 number, since 3×43640162741³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43640162695 and 43640162704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43640162791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58813865 + ... + 58814606.

It is an arithmetic number, because the mean of its divisors is an integer number (6351937488).

Almost surely, 2^43640162741 is an apocalyptic number.

It is an amenable number.

43640162741 is a deficient number, since it is larger than the sum of its proper divisors (7175337163).

43640162741 is a wasteful number, since it uses less digits than its factorization.

43640162741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117628531.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 43640162741 in words is "forty-three billion, six hundred forty million, one hundred sixty-two thousand, seven hundred forty-one".