2611788261426 has 12 divisors (see below), whose sum is σ = 5658874566462. Its totient is φ = 870596087136.

The previous prime is 2611788261419. The next prime is 2611788261457. The reversal of 2611788261426 is 6241628871162.

2611788261426 is a `hidden beast` number, since 2 + 6 + 1 + 17 + 8 + 8 + 2 + 614 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1370901431025 + 1240886830401 = 1170855^2 + 1113951^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72549673911 + ... + 72549673946.

Almost surely, 2^{2611788261426} is an apocalyptic number.

2611788261426 is an abundant number, since it is smaller than the sum of its proper divisors (3047086305036).

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

2611788261426 is a wasteful number, since it uses less digits than its factorization.

2611788261426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145099347865 (or 145099347862 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 2611788261426 in words is "two trillion, six hundred eleven billion, seven hundred eighty-eight million, two hundred sixty-one thousand, four hundred twenty-six".