1961541713163 has 8 divisors (see below), whose sum is σ = 2615488128000. Its totient is φ = 1307644886888.

The previous prime is 1961541713143. The next prime is 1961541713167. The reversal of 1961541713163 is 3613171451691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1961541713163 - 2¹² = 1961541709067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1961541713167) 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, 12304743 + ... + 12463136.

It is an arithmetic number, because the mean of its divisors is an integer number (326936016000).

Almost surely, 2^{1961541713163} is an apocalyptic number.

1961541713163 is a deficient number, since it is larger than the sum of its proper divisors (653946414837).

1961541713163 is a wasteful number, since it uses less digits than its factorization.

1961541713163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24794281.

The product of its digits is 408240, while the sum is 48.

The spelling of 1961541713163 in words is "one trillion, nine hundred sixty-one billion, five hundred forty-one million, seven hundred thirteen thousand, one hundred sixty-three".