1950382561 has 4 divisors (see below), whose sum is σ = 1965740032. Its totient is φ = 1935025092.

The previous prime is 1950382549. The next prime is 1950382571. The reversal of 1950382561 is 1652830591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1950382561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1950382571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7678545 + ... + 7678798.

It is an arithmetic number, because the mean of its divisors is an integer number (491435008).

Almost surely, 2^1950382561 is an apocalyptic number.

It is an amenable number.

1950382561 is a deficient number, since it is larger than the sum of its proper divisors (15357471).

1950382561 is a wasteful number, since it uses less digits than its factorization.

1950382561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15357470.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 1950382561 is about 44163.1357695533. The cubic root of 1950382561 is about 1249.4146723026.

The spelling of 1950382561 in words is "one billion, nine hundred fifty million, three hundred eighty-two thousand, five hundred sixty-one".