1963113646 has 32 divisors (see below), whose sum is σ = 3300867360. Its totient is φ = 869387904.

The previous prime is 1963113643. The next prime is 1963113679. The reversal of 1963113646 is 6463113691.

It is a happy number.

It is a super-2 number, since 2×1963113646² = 7707630374222826632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1963113599 and 1963113608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963113643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114916 + ... + 130888.

It is an arithmetic number, because the mean of its divisors is an integer number (103152105).

Almost surely, 2^1963113646 is an apocalyptic number.

1963113646 is a deficient number, since it is larger than the sum of its proper divisors (1337753714).

1963113646 is a wasteful number, since it uses less digits than its factorization.

1963113646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16180.

The product of its digits is 69984, while the sum is 40.

The square root of 1963113646 is about 44307.0383347838. The cubic root of 1963113646 is about 1252.1272888068.

The spelling of 1963113646 in words is "one billion, nine hundred sixty-three million, one hundred thirteen thousand, six hundred forty-six".