1205080780533 has 48 divisors (see below), whose sum is σ = 1912849874496. Its totient is φ = 672505666560.

The previous prime is 1205080780513. The next prime is 1205080780559. The reversal of 1205080780533 is 3350870805021.

It is not a de Polignac number, because 1205080780533 - 2⁹ = 1205080780021 is a prime.

It is a super-3 number, since 3×1205080780533³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205080780513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82753573 + ... + 82768133.

It is an arithmetic number, because the mean of its divisors is an integer number (39851039052).

Almost surely, 2^{1205080780533} is an apocalyptic number.

It is an amenable number.

1205080780533 is a deficient number, since it is larger than the sum of its proper divisors (707769093963).

1205080780533 is a wasteful number, since it uses less digits than its factorization.

1205080780533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27714 (or 27707 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 1205080780533 in words is "one trillion, two hundred five billion, eighty million, seven hundred eighty thousand, five hundred thirty-three".