1969952773 has 4 divisors (see below), whose sum is σ = 1970135200. Its totient is φ = 1969770348.

The previous prime is 1969952771. The next prime is 1969952797. The reversal of 1969952773 is 3772599691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1969952773 - 2¹ = 1969952771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969952771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73923 + ... + 96976.

It is an arithmetic number, because the mean of its divisors is an integer number (492533800).

Almost surely, 2^1969952773 is an apocalyptic number.

It is an amenable number.

1969952773 is a deficient number, since it is larger than the sum of its proper divisors (182427).

1969952773 is a wasteful number, since it uses less digits than its factorization.

1969952773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182426.

The product of its digits is 6429780, while the sum is 58.

The square root of 1969952773 is about 44384.1500200240. The cubic root of 1969952773 is about 1253.5796639261.

The spelling of 1969952773 in words is "one billion, nine hundred sixty-nine million, nine hundred fifty-two thousand, seven hundred seventy-three".