1639113495 has 16 divisors (see below), whose sum is σ = 2713016160. Its totient is φ = 844049024.

The previous prime is 1639113479. The next prime is 1639113521. The reversal of 1639113495 is 5943119361.

1639113495 is digitally balanced in base 4, 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 1639113495 - 2⁴ = 1639113479 is a prime.

It is a super-2 number, since 2×1639113495² = 5373386098982230050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1883604 + ... + 1884473.

It is an arithmetic number, because the mean of its divisors is an integer number (169563510).

Almost surely, 2^1639113495 is an apocalyptic number.

1639113495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1639113495 is a deficient number, since it is larger than the sum of its proper divisors (1073902665).

1639113495 is a wasteful number, since it uses less digits than its factorization.

1639113495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768114.

The product of its digits is 87480, while the sum is 42.

The square root of 1639113495 is about 40485.9666427764. The cubic root of 1639113495 is about 1179.0611835093.

The spelling of 1639113495 in words is "one billion, six hundred thirty-nine million, one hundred thirteen thousand, four hundred ninety-five".