40838764451 has 2 divisors, whose sum is σ = 40838764452. Its totient is φ = 40838764450.

The previous prime is 40838764429. The next prime is 40838764459. The reversal of 40838764451 is 15446783804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40838764451 - 2⁶ = 40838764387 is a prime.

It is a super-3 number, since 3×40838764451³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 40838764451.

It is not a weakly prime, because it can be changed into another prime (40838764459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20419382225 + 20419382226.

It is an arithmetic number, because the mean of its divisors is an integer number (20419382226).

Almost surely, 2^40838764451 is an apocalyptic number.

40838764451 is a deficient number, since it is larger than the sum of its proper divisors (1).

40838764451 is an equidigital number, since it uses as much as digits as its factorization.

40838764451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 40838764451 in words is "forty billion, eight hundred thirty-eight million, seven hundred sixty-four thousand, four hundred fifty-one".