39490209493 has 16 divisors (see below), whose sum is σ = 45439115904. Its totient is φ = 33618646080.

The previous prime is 39490209457. The next prime is 39490209523.

39490209493 is nontrivially palindromic in base 10.

39490209493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 39490209493 - 2¹³ = 39490201301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39490209493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39490209403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990246 + ... + 1029352.

It is an arithmetic number, because the mean of its divisors is an integer number (2839944744).

Almost surely, 2^39490209493 is an apocalyptic number.

It is an amenable number.

39490209493 is a deficient number, since it is larger than the sum of its proper divisors (5948906411).

39490209493 is a wasteful number, since it uses less digits than its factorization.

39490209493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40092.

The product of its (nonzero) digits is 1889568, while the sum is 52.

The spelling of 39490209493 in words is "thirty-nine billion, four hundred ninety million, two hundred nine thousand, four hundred ninety-three".