40420364403543 has 16 divisors (see below), whose sum is σ = 55149424661760. Its totient is φ = 26319158256384.

The previous prime is 40420364403533. The next prime is 40420364403547. The reversal of 40420364403543 is 34530446302404.

It is not a de Polignac number, because 40420364403543 - 2¹⁴ = 40420364387159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40420364403495 and 40420364403504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420364403547) 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, 3257946 + ... + 9563207.

It is an arithmetic number, because the mean of its divisors is an integer number (3446839041360).

Almost surely, 2^{40420364403543} is an apocalyptic number.

40420364403543 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40420364403543 is a deficient number, since it is larger than the sum of its proper divisors (14729060258217).

40420364403543 is a wasteful number, since it uses less digits than its factorization.

40420364403543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12845638.

The product of its (nonzero) digits is 1658880, while the sum is 42.

The spelling of 40420364403543 in words is "forty trillion, four hundred twenty billion, three hundred sixty-four million, four hundred three thousand, five hundred forty-three".