40213213761 has 8 divisors (see below), whose sum is σ = 61277278144. Its totient is φ = 22978979280.

The previous prime is 40213213751. The next prime is 40213213783. The reversal of 40213213761 is 16731231204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40213213761 - 2²¹ = 40211116609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40213213721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957457450 + ... + 957457491.

It is an arithmetic number, because the mean of its divisors is an integer number (7659659768).

Almost surely, 2^40213213761 is an apocalyptic number.

It is an amenable number.

40213213761 is a deficient number, since it is larger than the sum of its proper divisors (21064064383).

40213213761 is a wasteful number, since it uses less digits than its factorization.

40213213761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914914951.

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 40213213761 its reverse (16731231204), we get a palindrome (56944444965).

The spelling of 40213213761 in words is "forty billion, two hundred thirteen million, two hundred thirteen thousand, seven hundred sixty-one".