1639137093 has 32 divisors (see below), whose sum is σ = 2528547840. Its totient is φ = 933461760.

The previous prime is 1639137091. The next prime is 1639137103. The reversal of 1639137093 is 3907319361.

It is not a de Polignac number, because 1639137093 - 2¹ = 1639137091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1639137091) 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 31 ways as a sum of consecutive naturals, for example, 405838 + ... + 409856.

It is an arithmetic number, because the mean of its divisors is an integer number (79017120).

Almost surely, 2^1639137093 is an apocalyptic number.

It is an amenable number.

1639137093 is a deficient number, since it is larger than the sum of its proper divisors (889410747).

1639137093 is a wasteful number, since it uses less digits than its factorization.

1639137093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777.

The product of its (nonzero) digits is 91854, while the sum is 42.

The square root of 1639137093 is about 40486.2580760435. The cubic root of 1639137093 is about 1179.0668417207.

The spelling of 1639137093 in words is "one billion, six hundred thirty-nine million, one hundred thirty-seven thousand, ninety-three".