1956913693 has 8 divisors (see below), whose sum is σ = 2241665280. Its totient is φ = 1673460240.

The previous prime is 1956913681. The next prime is 1956913709. The reversal of 1956913693 is 3963196591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1956913693 - 2²⁹ = 1420042781 is a prime.

It is a super-2 number, since 2×1956913693² = 7659022403701796498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1956913693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956913613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321298 + ... + 327331.

It is an arithmetic number, because the mean of its divisors is an integer number (280208160).

Almost surely, 2^1956913693 is an apocalyptic number.

It is an amenable number.

1956913693 is a deficient number, since it is larger than the sum of its proper divisors (284751587).

1956913693 is an equidigital number, since it uses as much as digits as its factorization.

1956913693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649067.

The product of its digits is 1180980, while the sum is 52.

The square root of 1956913693 is about 44237.0172253962. The cubic root of 1956913693 is about 1250.8077324489.

The spelling of 1956913693 in words is "one billion, nine hundred fifty-six million, nine hundred thirteen thousand, six hundred ninety-three".