780505025061 has 8 divisors (see below), whose sum is σ = 1040687071200. Its totient is φ = 520329831152.

The previous prime is 780505025039. The next prime is 780505025063. The reversal of 780505025061 is 160520505087.

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 780505025061 - 2¹⁰ = 780505024037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780505025063) 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, 1441110 + ... + 1907303.

It is an arithmetic number, because the mean of its divisors is an integer number (130085883900).

Almost surely, 2^780505025061 is an apocalyptic number.

It is an amenable number.

780505025061 is a deficient number, since it is larger than the sum of its proper divisors (260182046139).

780505025061 is a wasteful number, since it uses less digits than its factorization.

780505025061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426115.

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 780505025061 in words is "seven hundred eighty billion, five hundred five million, twenty-five thousand, sixty-one".