61768452843 has 12 divisors (see below), whose sum is σ = 89254462128. Its totient is φ = 41163570000.

The previous prime is 61768452833. The next prime is 61768452877. The reversal of 61768452843 is 34825486716.

It is a happy number.

61768452843 is a `hidden beast` number, since 6 + 1 + 76 + 8 + 4 + 528 + 43 = 666.

It is not a de Polignac number, because 61768452843 - 2⁹ = 61768452331 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61768452843.

It is not an unprimeable number, because it can be changed into a prime (61768452833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1257783 + ... + 1305968.

It is an arithmetic number, because the mean of its divisors is an integer number (7437871844).

Almost surely, 2^61768452843 is an apocalyptic number.

61768452843 is a deficient number, since it is larger than the sum of its proper divisors (27486009285).

61768452843 is a wasteful number, since it uses less digits than its factorization.

61768452843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566434 (or 2566431 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 61768452843 in words is "sixty-one billion, seven hundred sixty-eight million, four hundred fifty-two thousand, eight hundred forty-three".