1401710949891 has 96 divisors (see below), whose sum is σ = 2363861147648. Its totient is φ = 783840395520.

The previous prime is 1401710949887. The next prime is 1401710949893. The reversal of 1401710949891 is 1989490171041.

It is a happy number.

1401710949891 is a `hidden beast` number, since 1 + 40 + 1 + 7 + 109 + 498 + 9 + 1 = 666.

It is not a de Polignac number, because 1401710949891 - 2² = 1401710949887 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (1401710949893) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1282443141 + ... + 1282444233.

Almost surely, 2^{1401710949891} is an apocalyptic number.

1401710949891 is a deficient number, since it is larger than the sum of its proper divisors (962150197757).

1401710949891 is a wasteful number, since it uses less digits than its factorization.

1401710949891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 54.

The spelling of 1401710949891 in words is "one trillion, four hundred one billion, seven hundred ten million, nine hundred forty-nine thousand, eight hundred ninety-one".