1959778211253 has 16 divisors (see below), whose sum is σ = 2698336280640. Its totient is φ = 1264426982784.

The previous prime is 1959778211231. The next prime is 1959778211263. The reversal of 1959778211253 is 3521128779591.

It is not a de Polignac number, because 1959778211253 - 2¹⁸ = 1959777949109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1959778211263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69674376 + ... + 69702497.

It is an arithmetic number, because the mean of its divisors is an integer number (168646017540).

Almost surely, 2^{1959778211253} is an apocalyptic number.

It is an amenable number.

1959778211253 is a deficient number, since it is larger than the sum of its proper divisors (738558069387).

1959778211253 is a wasteful number, since it uses less digits than its factorization.

1959778211253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139377028.

The product of its digits is 9525600, while the sum is 60.

The spelling of 1959778211253 in words is "one trillion, nine hundred fifty-nine billion, seven hundred seventy-eight million, two hundred eleven thousand, two hundred fifty-three".