40234363861 has 4 divisors (see below), whose sum is σ = 40236156000. Its totient is φ = 40232571724.

The previous prime is 40234363789. The next prime is 40234363907. The reversal of 40234363861 is 16836343204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40234363861 - 2¹⁹ = 40233839573 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 (40234363061) 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, 861961 + ... + 907438.

It is an arithmetic number, because the mean of its divisors is an integer number (10059039000).

Almost surely, 2^40234363861 is an apocalyptic number.

It is an amenable number.

40234363861 is a deficient number, since it is larger than the sum of its proper divisors (1792139).

40234363861 is a wasteful number, since it uses less digits than its factorization.

40234363861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792138.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 40234363861 in words is "forty billion, two hundred thirty-four million, three hundred sixty-three thousand, eight hundred sixty-one".