39649061019 has 16 divisors (see below), whose sum is σ = 56015776800. Its totient is φ = 24859783680.

The previous prime is 39649061017. The next prime is 39649061033. The reversal of 39649061019 is 91016094693.

It is not a de Polignac number, because 39649061019 - 2¹ = 39649061017 is a prime.

It is a super-2 number, since 2×39649061019² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39649061017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211044 + ... + 351905.

It is an arithmetic number, because the mean of its divisors is an integer number (3500986050).

Almost surely, 2^39649061019 is an apocalyptic number.

39649061019 is a deficient number, since it is larger than the sum of its proper divisors (16366715781).

39649061019 is a wasteful number, since it uses less digits than its factorization.

39649061019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564350.

The product of its (nonzero) digits is 314928, while the sum is 48.

The spelling of 39649061019 in words is "thirty-nine billion, six hundred forty-nine million, sixty-one thousand, nineteen".