40401134044413 has 4 divisors (see below), whose sum is σ = 53868178725888. Its totient is φ = 26934089362940.

The previous prime is 40401134044409. The next prime is 40401134044423. The reversal of 40401134044413 is 31444043110404.

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 40401134044413 - 2² = 40401134044409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401134044423) 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, 6733522340733 + ... + 6733522340738.

It is an arithmetic number, because the mean of its divisors is an integer number (13467044681472).

Almost surely, 2^{40401134044413} is an apocalyptic number.

It is an amenable number.

40401134044413 is a deficient number, since it is larger than the sum of its proper divisors (13467044681475).

40401134044413 is a wasteful number, since it uses less digits than its factorization.

40401134044413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13467044681474.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 40401134044413 its reverse (31444043110404), we get a palindrome (71845177154817).

The spelling of 40401134044413 in words is "forty trillion, four hundred one billion, one hundred thirty-four million, forty-four thousand, four hundred thirteen".