39422141645 has 4 divisors (see below), whose sum is σ = 47306569980. Its totient is φ = 31537713312.

The previous prime is 39422141587. The next prime is 39422141651. The reversal of 39422141645 is 54614122493.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21740322916 + 17681818729 = 147446^2 + 132973^2 .

It is a cyclic number.

It is not a de Polignac number, because 39422141645 - 2⁶ = 39422141581 is a prime.

It is a super-3 number, since 3×39422141645³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3942214160 + ... + 3942214169.

It is an arithmetic number, because the mean of its divisors is an integer number (11826642495).

Almost surely, 2^39422141645 is an apocalyptic number.

It is an amenable number.

39422141645 is a deficient number, since it is larger than the sum of its proper divisors (7884428335).

39422141645 is an equidigital number, since it uses as much as digits as its factorization.

39422141645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884428334.

The product of its digits is 207360, while the sum is 41.

The spelling of 39422141645 in words is "thirty-nine billion, four hundred twenty-two million, one hundred forty-one thousand, six hundred forty-five".