40355213543 has 4 divisors (see below), whose sum is σ = 40357131480. Its totient is φ = 40353295608.

The previous prime is 40355213531. The next prime is 40355213551. The reversal of 40355213543 is 34531255304.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40355213543 - 2²⁶ = 40288104679 is a prime.

It is a super-2 number, since 2×40355213543² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40355215543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927053 + ... + 969606.

It is an arithmetic number, because the mean of its divisors is an integer number (10089282870).

Almost surely, 2^40355213543 is an apocalyptic number.

40355213543 is a deficient number, since it is larger than the sum of its proper divisors (1917937).

40355213543 is a wasteful number, since it uses less digits than its factorization.

40355213543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917936.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 40355213543 its reverse (34531255304), we get a palindrome (74886468847).

The spelling of 40355213543 in words is "forty billion, three hundred fifty-five million, two hundred thirteen thousand, five hundred forty-three".