40021943641703 has 16 divisors (see below), whose sum is σ = 42337749498816. Its totient is φ = 37754204716800.

The previous prime is 40021943641697. The next prime is 40021943641717. The reversal of 40021943641703 is 30714634912004.

It is not a de Polignac number, because 40021943641703 - 2¹⁸ = 40021943379559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40021943641753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18627401 + ... + 20664557.

It is an arithmetic number, because the mean of its divisors is an integer number (2646109343676).

Almost surely, 2^{40021943641703} is an apocalyptic number.

40021943641703 is a deficient number, since it is larger than the sum of its proper divisors (2315805857113).

40021943641703 is a wasteful number, since it uses less digits than its factorization.

40021943641703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048954.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 40021943641703 in words is "forty trillion, twenty-one billion, nine hundred forty-three million, six hundred forty-one thousand, seven hundred three".