11390494639 has 2 divisors, whose sum is σ = 11390494640. Its totient is φ = 11390494638.

The previous prime is 11390494627. The next prime is 11390494667. The reversal of 11390494639 is 93649409311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11390494639 - 2²¹ = 11388397487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11390494592 and 11390494601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11390494669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695247319 + 5695247320.

It is an arithmetic number, because the mean of its divisors is an integer number (5695247320).

Almost surely, 2^11390494639 is an apocalyptic number.

11390494639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11390494639 is an equidigital number, since it uses as much as digits as its factorization.

11390494639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 49.

The spelling of 11390494639 in words is "eleven billion, three hundred ninety million, four hundred ninety-four thousand, six hundred thirty-nine".