9941764841 has 4 divisors (see below), whose sum is σ = 9942838272. Its totient is φ = 9940691412.

The previous prime is 9941764799. The next prime is 9941764843. The reversal of 9941764841 is 1484671499.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1484671499 = 31 ⋅47892629.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9941764841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9941764843) 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, 522701 + ... + 541386.

It is an arithmetic number, because the mean of its divisors is an integer number (2485709568).

Almost surely, 2^9941764841 is an apocalyptic number.

It is an amenable number.

9941764841 is a deficient number, since it is larger than the sum of its proper divisors (1073431).

9941764841 is a wasteful number, since it uses less digits than its factorization.

9941764841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073430.

The product of its digits is 1741824, while the sum is 53.

The square root of 9941764841 is about 99708.3990494281. The cubic root of 9941764841 is about 2150.2444172103.

The spelling of 9941764841 in words is "nine billion, nine hundred forty-one million, seven hundred sixty-four thousand, eight hundred forty-one".