40364768266 has 4 divisors (see below), whose sum is σ = 60547152402. Its totient is φ = 20182384132.

The previous prime is 40364768251. The next prime is 40364768281. The reversal of 40364768266 is 66286746304.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40364768251) and next prime (40364768281).

It can be written as a sum of positive squares in only one way, i.e., 32643455625 + 7721312641 = 180675^2 + 87871^2 .

It is an unprimeable number.

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, 10091192065 + ... + 10091192068.

Almost surely, 2^40364768266 is an apocalyptic number.

40364768266 is a deficient number, since it is larger than the sum of its proper divisors (20182384136).

40364768266 is a wasteful number, since it uses less digits than its factorization.

40364768266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20182384135.

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 40364768266 in words is "forty billion, three hundred sixty-four million, seven hundred sixty-eight thousand, two hundred sixty-six".