40436674040681 has 4 divisors (see below), whose sum is σ = 41297028807552. Its totient is φ = 39576319273812.

The previous prime is 40436674040677. The next prime is 40436674040683. The reversal of 40436674040681 is 18604047663404.

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 not a de Polignac number, because 40436674040681 - 2² = 40436674040677 is a prime.

It is a super-2 number, since 2×40436674040681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40436674040683) 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, 430177383365 + ... + 430177383458.

It is an arithmetic number, because the mean of its divisors is an integer number (10324257201888).

Almost surely, 2^{40436674040681} is an apocalyptic number.

It is an amenable number.

40436674040681 is a deficient number, since it is larger than the sum of its proper divisors (860354766871).

40436674040681 is an equidigital number, since it uses as much as digits as its factorization.

40436674040681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860354766870.

The product of its (nonzero) digits is 9289728, while the sum is 53.

The spelling of 40436674040681 in words is "forty trillion, four hundred thirty-six billion, six hundred seventy-four million, forty thousand, six hundred eighty-one".