61453450866 has 16 divisors (see below), whose sum is σ = 122910843744. Its totient is φ = 20483826624.

The previous prime is 61453450853. The next prime is 61453450871. The reversal of 61453450866 is 66805435416.

It is a super-2 number, since 2×61453450866² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62490 + ... + 356106.

It is an arithmetic number, because the mean of its divisors is an integer number (7681927734).

Almost surely, 2^61453450866 is an apocalyptic number.

61453450866 is an abundant number, since it is smaller than the sum of its proper divisors (61457392878).

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

61453450866 is a wasteful number, since it uses less digits than its factorization.

61453450866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328505.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 61453450866 in words is "sixty-one billion, four hundred fifty-three million, four hundred fifty thousand, eight hundred sixty-six".