40966437569 has 4 divisors (see below), whose sum is σ = 40967008944. Its totient is φ = 40965866196.

The previous prime is 40966437563. The next prime is 40966437581. The reversal of 40966437569 is 96573466904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40966437569 is a prime.

It is a super-2 number, since 2×40966437569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40966437563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159587 + ... + 327720.

It is an arithmetic number, because the mean of its divisors is an integer number (10241752236).

Almost surely, 2^40966437569 is an apocalyptic number.

It is an amenable number.

40966437569 is a deficient number, since it is larger than the sum of its proper divisors (571375).

40966437569 is an equidigital number, since it uses as much as digits as its factorization.

40966437569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571374.

The product of its (nonzero) digits is 29393280, while the sum is 59.

The spelling of 40966437569 in words is "forty billion, nine hundred sixty-six million, four hundred thirty-seven thousand, five hundred sixty-nine".