61132763646 has 12 divisors (see below), whose sum is σ = 132454321272. Its totient is φ = 20377587876.

The previous prime is 61132763617. The next prime is 61132763647. The reversal of 61132763646 is 64636723116.

61132763646 is a `hidden beast` number, since 6 + 1 + 1 + 3 + 2 + 7 + 636 + 4 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61132763647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1698132306 + ... + 1698132341.

It is an arithmetic number, because the mean of its divisors is an integer number (11037860106).

Almost surely, 2^61132763646 is an apocalyptic number.

61132763646 is an abundant number, since it is smaller than the sum of its proper divisors (71321557626).

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

61132763646 is a wasteful number, since it uses less digits than its factorization.

61132763646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396264655 (or 3396264652 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 61132763646 in words is "sixty-one billion, one hundred thirty-two million, seven hundred sixty-three thousand, six hundred forty-six".