12580777461 has 64 divisors (see below), whose sum is σ = 21077508096. Its totient is φ = 6509030400.

The previous prime is 12580777397. The next prime is 12580777511. The reversal of 12580777461 is 16477708521.

It is not a de Polignac number, because 12580777461 - 2⁶ = 12580777397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12580777461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12580775461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1911306 + ... + 1917876.

It is an arithmetic number, because the mean of its divisors is an integer number (329336064).

Almost surely, 2^12580777461 is an apocalyptic number.

It is an amenable number.

12580777461 is a deficient number, since it is larger than the sum of its proper divisors (8496730635).

12580777461 is a wasteful number, since it uses less digits than its factorization.

12580777461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802.

The product of its (nonzero) digits is 658560, while the sum is 48.

The spelling of 12580777461 in words is "twelve billion, five hundred eighty million, seven hundred seventy-seven thousand, four hundred sixty-one".