40134616607647 has 4 divisors (see below), whose sum is σ = 40134652728520. Its totient is φ = 40134580486776.

The previous prime is 40134616607639. The next prime is 40134616607669. The reversal of 40134616607647 is 74670661643104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40134616607647 - 2³ = 40134616607639 is a prime.

It is a super-2 number, since 2×40134616607647² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40134616607147) 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, 16339068 + ... + 18634225.

It is an arithmetic number, because the mean of its divisors is an integer number (10033663182130).

Almost surely, 2^{40134616607647} is an apocalyptic number.

40134616607647 is a deficient number, since it is larger than the sum of its proper divisors (36120873).

40134616607647 is a wasteful number, since it uses less digits than its factorization.

40134616607647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36120872.

The product of its (nonzero) digits is 12192768, while the sum is 55.

The spelling of 40134616607647 in words is "forty trillion, one hundred thirty-four billion, six hundred sixteen million, six hundred seven thousand, six hundred forty-seven".