40547428517671 has 8 divisors (see below), whose sum is σ = 40593009482640. Its totient is φ = 40501849483968.

The previous prime is 40547428517581. The next prime is 40547428517681. The reversal of 40547428517671 is 17671582474504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40547428517671 - 2¹⁹ = 40547427993383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40547428517681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43811805 + ... + 44727721.

It is an arithmetic number, because the mean of its divisors is an integer number (5074126185330).

Almost surely, 2^{40547428517671} is an apocalyptic number.

40547428517671 is a deficient number, since it is larger than the sum of its proper divisors (45580964969).

40547428517671 is an equidigital number, since it uses as much as digits as its factorization.

40547428517671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965633.

The product of its (nonzero) digits is 52684800, while the sum is 61.

The spelling of 40547428517671 in words is "forty trillion, five hundred forty-seven billion, four hundred twenty-eight million, five hundred seventeen thousand, six hundred seventy-one".