1940061639319 has 4 divisors (see below), whose sum is σ = 1944805066720. Its totient is φ = 1935318211920.

The previous prime is 1940061639301. The next prime is 1940061639331. The reversal of 1940061639319 is 9139361600491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1940061639319 - 2¹⁵ = 1940061606551 is a prime.

It is a super-2 number, since 2×1940061639319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940061639619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2371713087 + ... + 2371713904.

It is an arithmetic number, because the mean of its divisors is an integer number (486201266680).

Almost surely, 2^{1940061639319} is an apocalyptic number.

1940061639319 is a deficient number, since it is larger than the sum of its proper divisors (4743427401).

1940061639319 is an equidigital number, since it uses as much as digits as its factorization.

1940061639319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743427400.

The product of its (nonzero) digits is 944784, while the sum is 52.

The spelling of 1940061639319 in words is "one trillion, nine hundred forty billion, sixty-one million, six hundred thirty-nine thousand, three hundred nineteen".