40421404675089 has 9 divisors (see below), whose sum is σ = 58386500969979. Its totient is φ = 26947590401160.

The previous prime is 40421404675081. The next prime is 40421404675111. The reversal of 40421404675089 is 98057640412404.

The square root of 40421404675089 is 6357783.

It is a perfect power (a square), and thus also a powerful number.

40421404675089 is a `hidden beast` number, since 4 + 0 + 42 + 14 + 0 + 467 + 50 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23247508335489 + 17173896339600 = 4821567^2 + 4144140^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 40421404675089 - 2³ = 40421404675081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40421404675081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18013719 + ... + 20132979.

Almost surely, 2^{40421404675089} is an apocalyptic number.

40421404675089 is the 6357783-rd square number.

40421404675089 is the 3178892-nd centered octagonal number.

It is an amenable number.

40421404675089 is a deficient number, since it is larger than the sum of its proper divisors (17965096294890).

40421404675089 is an frugal number, since it uses more digits than its factorization.

40421404675089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238528 (or 2119264 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 40421404675089 in words is "forty trillion, four hundred twenty-one billion, four hundred four million, six hundred seventy-five thousand, eighty-nine".