61649277743682 has 96 divisors (see below), whose sum is σ = 138456820389888. Its totient is φ = 19811351534688.

The previous prime is 61649277743671. The next prime is 61649277743693. The reversal of 61649277743682 is 28634777294616.

61649277743682 is a `hidden beast` number, since 6 + 1 + 6 + 49 + 2 + 7 + 77 + 436 + 82 = 666.

It is an interprime number because it is at equal distance from previous prime (61649277743671) and next prime (61649277743693).

It is a self number, because there is not a number n which added to its sum of digits gives 61649277743682.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67837863 + ... + 68740629.

It is an arithmetic number, because the mean of its divisors is an integer number (1442258545728).

Almost surely, 2^{61649277743682} is an apocalyptic number.

61649277743682 is an abundant number, since it is smaller than the sum of its proper divisors (76807542646206).

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

61649277743682 is a wasteful number, since it uses less digits than its factorization.

61649277743682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903964 (or 903961 counting only the distinct ones).

The product of its digits is 1024192512, while the sum is 72.

The spelling of 61649277743682 in words is "sixty-one trillion, six hundred forty-nine billion, two hundred seventy-seven million, seven hundred forty-three thousand, six hundred eighty-two".