40390016376289 has 4 divisors (see below), whose sum is σ = 40390156573380. Its totient is φ = 40389876179200.

The previous prime is 40390016376253. The next prime is 40390016376299. The reversal of 40390016376289 is 98267361009304.

It is a happy number.

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 20893446774225 + 19496569602064 = 4570935^2 + 4415492^2 .

It is a cyclic number.

It is not a de Polignac number, because 40390016376289 - 2⁹ = 40390016375777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40390016376299) by changing a digit.

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, 69665512 + ... + 70242889.

It is an arithmetic number, because the mean of its divisors is an integer number (10097539143345).

Almost surely, 2^{40390016376289} is an apocalyptic number.

It is an amenable number.

40390016376289 is a deficient number, since it is larger than the sum of its proper divisors (140197091).

40390016376289 is a wasteful number, since it uses less digits than its factorization.

40390016376289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140197090.

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 40390016376289 in words is "forty trillion, three hundred ninety billion, sixteen million, three hundred seventy-six thousand, two hundred eighty-nine".