1957563650 has 24 divisors (see below), whose sum is σ = 4161221760. Its totient is φ = 671164560.

The previous prime is 1957563637. The next prime is 1957563653. The reversal of 1957563650 is 563657591.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1957563595 and 1957563604.

It is not an unprimeable number, because it can be changed into a prime (1957563653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2796170 + ... + 2796869.

It is an arithmetic number, because the mean of its divisors is an integer number (173384240).

Almost surely, 2^1957563650 is an apocalyptic number.

1957563650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1957563650 is an abundant number, since it is smaller than the sum of its proper divisors (2203658110).

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

1957563650 is a wasteful number, since it uses less digits than its factorization.

1957563650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593058 (or 5593053 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 47.

The square root of 1957563650 is about 44244.3629177774. The cubic root of 1957563650 is about 1250.9461955904.

The spelling of 1957563650 in words is "one billion, nine hundred fifty-seven million, five hundred sixty-three thousand, six hundred fifty".