1963809552 has 40 divisors (see below), whose sum is σ = 5293750464. Its totient is φ = 626141824.

The previous prime is 1963809517. The next prime is 1963809557. The reversal of 1963809552 is 2559083691.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1963809557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888303 + ... + 890510.

Almost surely, 2^1963809552 is an apocalyptic number.

1963809552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1963809552 is an abundant number, since it is smaller than the sum of its proper divisors (3329940912).

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

1963809552 is a wasteful number, since it uses less digits than its factorization.

1963809552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778847 (or 1778841 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 1963809552 is about 44314.8908607479. The cubic root of 1963809552 is about 1252.2752272534.

The spelling of 1963809552 in words is "one billion, nine hundred sixty-three million, eight hundred nine thousand, five hundred fifty-two".