1969635064 has 8 divisors (see below), whose sum is σ = 3693065760. Its totient is φ = 984817528.

The previous prime is 1969635049. The next prime is 1969635103. The reversal of 1969635064 is 4605369691.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1969634999 and 1969635017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123102184 + ... + 123102199.

It is an arithmetic number, because the mean of its divisors is an integer number (461633220).

Almost surely, 2^1969635064 is an apocalyptic number.

It is an amenable number.

1969635064 is a deficient number, since it is larger than the sum of its proper divisors (1723430696).

1969635064 is a wasteful number, since it uses less digits than its factorization.

1969635064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246204389 (or 246204385 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 1969635064 is about 44380.5707939860. The cubic root of 1969635064 is about 1253.5122689171.

The spelling of 1969635064 in words is "one billion, nine hundred sixty-nine million, six hundred thirty-five thousand, sixty-four".