1908545013001 has 9 divisors (see below), whose sum is σ = 2097838908109. Its totient is φ = 1735027105900.

The previous prime is 1908545012993. The next prime is 1908545013079. The reversal of 1908545013001 is 1003105458091.

The square root of 1908545013001 is 1381501.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1908545013001 - 2³ = 1908545012993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1908545011001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15133716 + ... + 15259306.

Almost surely, 2^{1908545013001} is an apocalyptic number.

1908545013001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1908545013001 is the 1381501-st square number.

1908545013001 is the 690751-st centered octagonal number.

It is an amenable number.

1908545013001 is a deficient number, since it is larger than the sum of its proper divisors (189293895108).

1908545013001 is an frugal number, since it uses more digits than its factorization.

1908545013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251204 (or 125602 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 1908545013001 in words is "one trillion, nine hundred eight billion, five hundred forty-five million, thirteen thousand, one".