1964275774 has 4 divisors (see below), whose sum is σ = 2946413664. Its totient is φ = 982137886.

The previous prime is 1964275769. The next prime is 1964275777. The reversal of 1964275774 is 4775724691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4775724691 = 67 ⋅71279473.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964275777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491068942 + ... + 491068945.

It is an arithmetic number, because the mean of its divisors is an integer number (736603416).

Almost surely, 2^1964275774 is an apocalyptic number.

1964275774 is a deficient number, since it is larger than the sum of its proper divisors (982137890).

1964275774 is an equidigital number, since it uses as much as digits as its factorization.

1964275774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982137889.

The product of its digits is 2963520, while the sum is 52.

The square root of 1964275774 is about 44320.1508797071. The cubic root of 1964275774 is about 1252.3743190186.

The spelling of 1964275774 in words is "one billion, nine hundred sixty-four million, two hundred seventy-five thousand, seven hundred seventy-four".