1796803521601 has 27 divisors (see below), whose sum is σ = 1987311498627. Its totient is φ = 1623337356960.

The previous prime is 1796803521593. The next prime is 1796803521637. The reversal of 1796803521601 is 1061253086971.

The square root of 1796803521601 is 1340449.

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

It can be written as a sum of positive squares in only one way, i.e., 364894524225 + 1431908997376 = 604065^2 + 1196624^2 .

It is not a de Polignac number, because 1796803521601 - 2³ = 1796803521593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1796803521301) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3435570526 + ... + 3435571048.

Almost surely, 2^{1796803521601} is an apocalyptic number.

1796803521601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1796803521601 is the 1340449-th square number.

1796803521601 is the 670225-th centered octagonal number.

It is an amenable number.

1796803521601 is a deficient number, since it is larger than the sum of its proper divisors (190507977026).

1796803521601 is an frugal number, since it uses more digits than its factorization.

1796803521601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

Multiplying 1796803521601 by its sum of digits (49), we get a square (88043372558449 = 9383143²).

The spelling of 1796803521601 in words is "one trillion, seven hundred ninety-six billion, eight hundred three million, five hundred twenty-one thousand, six hundred one".