1964854202493 has 24 divisors (see below), whose sum is σ = 3281954275488. Its totient is φ = 1036406611296.

The previous prime is 1964854202449. The next prime is 1964854202513. The reversal of 1964854202493 is 3942024584691.

It is not a de Polignac number, because 1964854202493 - 2¹⁴ = 1964854186109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964854202413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514088671 + ... + 514092492.

It is an arithmetic number, because the mean of its divisors is an integer number (136748094812).

Almost surely, 2^{1964854202493} is an apocalyptic number.

1964854202493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1964854202493 is a deficient number, since it is larger than the sum of its proper divisors (1317100072995).

1964854202493 is a wasteful number, since it uses less digits than its factorization.

1964854202493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028181193 (or 1028181186 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 57.

The spelling of 1964854202493 in words is "one trillion, nine hundred sixty-four billion, eight hundred fifty-four million, two hundred two thousand, four hundred ninety-three".