19106941261 has 8 divisors (see below), whose sum is σ = 19133038080. Its totient is φ = 19080863712.

The previous prime is 19106941211. The next prime is 19106941277. The reversal of 19106941261 is 16214960191.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19106941261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19106941201) 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, 3431866 + ... + 3437428.

It is an arithmetic number, because the mean of its divisors is an integer number (2391629760).

Almost surely, 2^19106941261 is an apocalyptic number.

It is an amenable number.

19106941261 is a deficient number, since it is larger than the sum of its proper divisors (26096819).

19106941261 is a wasteful number, since it uses less digits than its factorization.

19106941261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9635.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 19106941261 in words is "nineteen billion, one hundred six million, nine hundred forty-one thousand, two hundred sixty-one".