1955948519713 has 8 divisors (see below), whose sum is σ = 1976616278280. Its totient is φ = 1935291033600.

The previous prime is 1955948519669. The next prime is 1955948519729. The reversal of 1955948519713 is 3179158495591.

It can be written as a sum of positive squares in 4 ways, for example, as 11786793489 + 1944161726224 = 108567^2 + 1394332^2 .

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 1955948519713 - 2¹³ = 1955948511521 is a prime.

It is a super-2 number, since 2×1955948519713² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955948519513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2184988 + ... + 2947213.

It is an arithmetic number, because the mean of its divisors is an integer number (247077034785).

Almost surely, 2^{1955948519713} is an apocalyptic number.

It is an amenable number.

1955948519713 is a deficient number, since it is larger than the sum of its proper divisors (20667758567).

1955948519713 is an equidigital number, since it uses as much as digits as its factorization.

1955948519713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136227.

The product of its digits is 61236000, while the sum is 67.

The spelling of 1955948519713 in words is "one trillion, nine hundred fifty-five billion, nine hundred forty-eight million, five hundred nineteen thousand, seven hundred thirteen".