1963121104 has 60 divisors (see below), whose sum is σ = 4684832964. Its totient is φ = 791841792.

The previous prime is 1963121077. The next prime is 1963121107. The reversal of 1963121104 is 4011213691.

It can be written as a sum of positive squares in 2 ways, for example, as 1742895504 + 220225600 = 41748^2 + 14840^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963121107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60319 + ... + 86974.

Almost surely, 2^1963121104 is an apocalyptic number.

1963121104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1963121104 is an abundant number, since it is smaller than the sum of its proper divisors (2721711860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1963121104 is a wasteful number, since it uses less digits than its factorization.

1963121104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147332 (or 147319 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1963121104 is about 44307.1224974044. The cubic root of 1963121104 is about 1252.1288744432.

Adding to 1963121104 its reverse (4011213691), we get a palindrome (5974334795).

The spelling of 1963121104 in words is "one billion, nine hundred sixty-three million, one hundred twenty-one thousand, one hundred four".