40547428517688 has 128 divisors (see below), whose sum is σ = 105872259064320. Its totient is φ = 12928477478400.

The previous prime is 40547428517681. The next prime is 40547428517719. The reversal of 40547428517688 is 88671582474504.

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 31 ways as a sum of consecutive naturals, for example, 29249038 + ... + 30603938.

It is an arithmetic number, because the mean of its divisors is an integer number (827127023940).

Almost surely, 2^{40547428517688} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40547428517688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52936129532160).

40547428517688 is an abundant number, since it is smaller than the sum of its proper divisors (65324830546632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40547428517688 is a wasteful number, since it uses less digits than its factorization.

40547428517688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355517 (or 1355513 counting only the distinct ones).

The product of its (nonzero) digits is 481689600, while the sum is 69.

The spelling of 40547428517688 in words is "forty trillion, five hundred forty-seven billion, four hundred twenty-eight million, five hundred seventeen thousand, six hundred eighty-eight".