780161061253 has 12 divisors (see below), whose sum is σ = 941009466720. Its totient is φ = 633514243176.

The previous prime is 780161061187. The next prime is 780161061271. The reversal of 780161061253 is 352160161087.

It is a happy number.

It is not a de Polignac number, because 780161061253 - 2²⁹ = 779624190341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780161061353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154362543 + ... + 154367596.

It is an arithmetic number, because the mean of its divisors is an integer number (78417455560).

Almost surely, 2^780161061253 is an apocalyptic number.

It is an amenable number.

780161061253 is a deficient number, since it is larger than the sum of its proper divisors (160848405467).

780161061253 is a wasteful number, since it uses less digits than its factorization.

780161061253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308730184 (or 308730165 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 780161061253 in words is "seven hundred eighty billion, one hundred sixty-one million, sixty-one thousand, two hundred fifty-three".