61894693167776 has 144 divisors (see below), whose sum is σ = 146872309661280. Its totient is φ = 25584683604480.

The previous prime is 61894693167767. The next prime is 61894693167863. The reversal of 61894693167776 is 67776139649816.

It is a self number, because there is not a number n which added to its sum of digits gives 61894693167776.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1408610 + ... + 11214881.

It is an arithmetic number, because the mean of its divisors is an integer number (1019946594870).

Almost surely, 2^{61894693167776} is an apocalyptic number.

It is an amenable number.

61894693167776 is an abundant number, since it is smaller than the sum of its proper divisors (84977616493504).

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

61894693167776 is a wasteful number, since it uses less digits than its factorization.

61894693167776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12623627 (or 12623612 counting only the distinct ones).

The product of its digits is 3456649728, while the sum is 80.

The spelling of 61894693167776 in words is "sixty-one trillion, eight hundred ninety-four billion, six hundred ninety-three million, one hundred sixty-seven thousand, seven hundred seventy-six".