40838764441 has 4 divisors (see below), whose sum is σ = 40839432832. Its totient is φ = 40838096052.

The previous prime is 40838764429. The next prime is 40838764451. The reversal of 40838764441 is 14446783804.

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 40838764441 - 2⁹ = 40838763929 is a prime.

It is a super-3 number, since 3×40838764441³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40838764451) 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, 232161 + ... + 368206.

It is an arithmetic number, because the mean of its divisors is an integer number (10209858208).

Almost surely, 2^40838764441 is an apocalyptic number.

It is an amenable number.

40838764441 is a deficient number, since it is larger than the sum of its proper divisors (668391).

40838764441 is an equidigital number, since it uses as much as digits as its factorization.

40838764441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668390.

The product of its (nonzero) digits is 2064384, while the sum is 49.

The spelling of 40838764441 in words is "forty billion, eight hundred thirty-eight million, seven hundred sixty-four thousand, four hundred forty-one".