40652801389 has 2 divisors, whose sum is σ = 40652801390. Its totient is φ = 40652801388.

The previous prime is 40652801377. The next prime is 40652801467. The reversal of 40652801389 is 98310825604.

40652801389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34611625764 + 6041175625 = 186042^2 + 77725^2 .

It is a cyclic number.

It is not a de Polignac number, because 40652801389 - 2¹⁵ = 40652768621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40652801339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20326400694 + 20326400695.

It is an arithmetic number, because the mean of its divisors is an integer number (20326400695).

Almost surely, 2^40652801389 is an apocalyptic number.

It is an amenable number.

40652801389 is a deficient number, since it is larger than the sum of its proper divisors (1).

40652801389 is an equidigital number, since it uses as much as digits as its factorization.

40652801389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 40652801389 in words is "forty billion, six hundred fifty-two million, eight hundred one thousand, three hundred eighty-nine".