1908667964461 has 8 divisors (see below), whose sum is σ = 1911387404864. Its totient is φ = 1905949880640.

The previous prime is 1908667964449. The next prime is 1908667964471. The reversal of 1908667964461 is 1644697668091.

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 1908667964461 - 2¹¹ = 1908667962413 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 (1908667964471) 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, 2493616 + ... + 3167878.

It is an arithmetic number, because the mean of its divisors is an integer number (238923425608).

Almost surely, 2^{1908667964461} is an apocalyptic number.

It is an amenable number.

1908667964461 is a deficient number, since it is larger than the sum of its proper divisors (2719440403).

1908667964461 is an equidigital number, since it uses as much as digits as its factorization.

1908667964461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678291.

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 1908667964461 in words is "one trillion, nine hundred eight billion, six hundred sixty-seven million, nine hundred sixty-four thousand, four hundred sixty-one".