2583561679780 has 12 divisors (see below), whose sum is σ = 5425479527580. Its totient is φ = 1033424671904.

The previous prime is 2583561679759. The next prime is 2583561679781. The reversal of 2583561679780 is 879761653852.

It can be written as a sum of positive squares in 2 ways, for example, as 1234005496164 + 1349556183616 = 1110858^2 + 1161704^2 .

It is not an unprimeable number, because it can be changed into a prime (2583561679781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64589041975 + ... + 64589042014.

It is an arithmetic number, because the mean of its divisors is an integer number (452123293965).

Almost surely, 2^{2583561679780} is an apocalyptic number.

2583561679780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2583561679780 is an abundant number, since it is smaller than the sum of its proper divisors (2841917847800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2583561679780 is a wasteful number, since it uses less digits than its factorization.

2583561679780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129178083998 (or 129178083996 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 67.

The spelling of 2583561679780 in words is "two trillion, five hundred eighty-three billion, five hundred sixty-one million, six hundred seventy-nine thousand, seven hundred eighty".