1963158449 has 16 divisors (see below), whose sum is σ = 2283469056. Its totient is φ = 1652985600.

The previous prime is 1963158443. The next prime is 1963158479. The reversal of 1963158449 is 9448513691.

It is not a de Polignac number, because 1963158449 - 2⁸ = 1963158193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1963158397 and 1963158406.

It is not an unprimeable number, because it can be changed into a prime (1963158443) 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, 132629 + ... + 146685.

It is an arithmetic number, because the mean of its divisors is an integer number (142716816).

Almost surely, 2^1963158449 is an apocalyptic number.

It is an amenable number.

1963158449 is a deficient number, since it is larger than the sum of its proper divisors (320310607).

1963158449 is a wasteful number, since it uses less digits than its factorization.

1963158449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14416.

The product of its digits is 933120, while the sum is 50.

The square root of 1963158449 is about 44307.5439287713. The cubic root of 1963158449 is about 1252.1368142584.

The spelling of 1963158449 in words is "one billion, nine hundred sixty-three million, one hundred fifty-eight thousand, four hundred forty-nine".