40685511262696 has 8 divisors (see below), whose sum is σ = 76285333617570. Its totient is φ = 20342755631344.

The previous prime is 40685511262691. The next prime is 40685511262709. The reversal of 40685511262696 is 69626211558604.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25747363562596 + 14938147700100 = 5074186^2 + 3864990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40685511262691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2542844453911 + ... + 2542844453926.

Almost surely, 2^{40685511262696} is an apocalyptic number.

It is an amenable number.

40685511262696 is a deficient number, since it is larger than the sum of its proper divisors (35599822354874).

40685511262696 is a wasteful number, since it uses less digits than its factorization.

40685511262696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085688907843 (or 5085688907839 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 61.

The spelling of 40685511262696 in words is "forty trillion, six hundred eighty-five billion, five hundred eleven million, two hundred sixty-two thousand, six hundred ninety-six".