40551500369 has 2 divisors, whose sum is σ = 40551500370. Its totient is φ = 40551500368.

The previous prime is 40551500359. The next prime is 40551500413. The reversal of 40551500369 is 96300515504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37128665344 + 3422835025 = 192688^2 + 58505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40551500369 is a prime.

It is a super-2 number, since 2×40551500369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40551500359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20275750184 + 20275750185.

It is an arithmetic number, because the mean of its divisors is an integer number (20275750185).

Almost surely, 2^40551500369 is an apocalyptic number.

It is an amenable number.

40551500369 is a deficient number, since it is larger than the sum of its proper divisors (1).

40551500369 is an equidigital number, since it uses as much as digits as its factorization.

40551500369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 40551500369 in words is "forty billion, five hundred fifty-one million, five hundred thousand, three hundred sixty-nine".