1940246904961 has 8 divisors (see below), whose sum is σ = 1945707220800. Its totient is φ = 1934786899440.

The previous prime is 1940246904941. The next prime is 1940246904979. The reversal of 1940246904961 is 1694096420491.

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 1940246904961 - 2²⁹ = 1939710034049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940246904941) 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, 19044046 + ... + 19145656.

It is an arithmetic number, because the mean of its divisors is an integer number (243213402600).

Almost surely, 2^{1940246904961} is an apocalyptic number.

It is an amenable number.

1940246904961 is a deficient number, since it is larger than the sum of its proper divisors (5460315839).

1940246904961 is a wasteful number, since it uses less digits than its factorization.

1940246904961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155159.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 1940246904961 in words is "one trillion, nine hundred forty billion, two hundred forty-six million, nine hundred four thousand, nine hundred sixty-one".