40755000021 has 16 divisors (see below), whose sum is σ = 55215343680. Its totient is φ = 26735788800.

The previous prime is 40755000017. The next prime is 40755000059. The reversal of 40755000021 is 12000055704.

It is not a de Polignac number, because 40755000021 - 2² = 40755000017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40754999955 and 40755000000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40755000721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385330 + ... + 479571.

It is an arithmetic number, because the mean of its divisors is an integer number (3450958980).

Almost surely, 2^40755000021 is an apocalyptic number.

It is an amenable number.

40755000021 is a deficient number, since it is larger than the sum of its proper divisors (14460343659).

40755000021 is a wasteful number, since it uses less digits than its factorization.

40755000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865156.

The product of its (nonzero) digits is 1400, while the sum is 24.

Adding to 40755000021 its reverse (12000055704), we get a palindrome (52755055725).

The spelling of 40755000021 in words is "forty billion, seven hundred fifty-five million, twenty-one", and thus it is an aban number.