40021264351 has 2 divisors, whose sum is σ = 40021264352. Its totient is φ = 40021264350.

The previous prime is 40021264343. The next prime is 40021264363. The reversal of 40021264351 is 15346212004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40021264351 - 2³ = 40021264343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40021264321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20010632175 + 20010632176.

It is an arithmetic number, because the mean of its divisors is an integer number (20010632176).

Almost surely, 2^40021264351 is an apocalyptic number.

40021264351 is a deficient number, since it is larger than the sum of its proper divisors (1).

40021264351 is an equidigital number, since it uses as much as digits as its factorization.

40021264351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 40021264351 its reverse (15346212004), we get a palindrome (55367476355).

The spelling of 40021264351 in words is "forty billion, twenty-one million, two hundred sixty-four thousand, three hundred fifty-one".